10 Best Things to Do in Istanbul

Istanbul rewards visitors with experiences that reveal its layered history from every angle: in Sultanahmet, Hagia Sophia Grand Mosque, the Basilica Cistern, the Sultan Ahmed Mosque (Blue Mosque) and Topkapı Palace bring Byzantine and Ottoman power into close view, while Süleymaniye Mosque adds a quieter, elevated sense of the city’s form. Beyond the old center, the Grand Bazaar keeps commerce alive in covered lanes, and the Bosphorus cruise with Şehir Hatları shows how the European and Asian shores shape daily life. On the contemporary side, Istanbul Modern and Kılıç Ali Paşa Hamamı offer different ways to engage with the city today. For a change of pace, Kadıköy market and Moda walk opens up the Asian shore’s neighbourhood rhythm.

Hagia Sophia Grand Mosque
Istanbul, Türkiye; Ayasofya Meydanı, Sultanahmet, Fatih, Istanbul
The scale of Hagia Sophia is apparent before individual details come into focus. A vast dome seems to gather the interior beneath it, demonstrating the architectural ambition of the Byzantine capital. Completed in AD 537, the building has served as a church, mosque and museum, and became a mosque again in 2020. Those changes make it an unusually concentrated expression of Istanbul’s history. For visitors, the interest lies in the relationship between the monumental space and the layers of decoration within it. Christian mosaics and Islamic inscriptions belong to different chapters of the building’s life, while the galleries offer a different understanding of its proportions from the prayer floor. A visit rewards some preparation: knowing even a little of the building’s changing functions makes the encounter more legible. Tourist access and worship follow separate arrangements, and major restoration is continuing. Confirm the current visitor entrance, gallery access and ticket requirements before committing to a visit; access to every area should not be assumed. Dress respectfully and follow staff directions. Despite these practical qualifications, Hagia Sophia remains the strongest single introduction to the city’s extraordinary architectural and religious inheritance.
An exceptional architectural monument that brings the city’s Byzantine and Ottoman histories together.
Bosphorus cruise with Şehir Hatları
Istanbul, Türkiye; Şehir Hatları Bosphorus Tour departure pier, Eminönü waterfront, Fatih, Istanbul
Istanbul makes more sense from the Bosphorus. The strait separates its European and Asian shores while binding neighbourhoods together through ferries, commerce and daily movement. A cruise with municipal operator Şehir Hatları gives visitors time to read this geography, watching the dense historic centre give way to waterfront houses, palaces and greener slopes. The pleasure is in the changing sequence rather than a single landmark. Minarets emerge behind ferry terminals, larger ships move along the shipping channel and ordinary residential districts become part of the view. It is an opportunity to appreciate how much of Istanbul’s character lies beyond the streets immediately around Sultanahmet. Take a seat with a view, but allow time to move between perspectives where the vessel’s layout permits. Use the operator’s official Bosphorus-tour timetable when planning. Tour services differ from ordinary commuter crossings, and the available route, departure pier and return arrangements should be checked for the travel date. Longer sailings require a substantial part of the day. The experience ranks near the top because it combines spectacular urban scenery with a useful understanding of the city’s working geography, at a pace that encourages looking.
The clearest way to understand the city’s two shores and the waterway that connects their histories.
Topkapı Palace
Fatih, Istanbul, Turkey; Cankurtaran Mah., Babı Hümayun Cad. No: 1, Sultanahmet
Topkapı Palace is best understood as a series of thresholds. Successive courtyards, gateways and smaller buildings lead from the public business of an empire towards more private spaces, showing how Ottoman court life was organised. Construction began under Mehmed II after the conquest of Constantinople, and the palace remained a centre of rule for centuries. Its appeal lies in this dispersed arrangement. Rather than one enormous block, visitors encounter pavilions, decorated rooms, gardens and changing views across the water. Tilework and architectural detail deserve as much attention as the collections. The Harem adds another dimension, explaining the residential setting of the dynasty, although its admission arrangements should be checked separately when choosing a ticket. Give the palace a generous part of the day and decide which sections matter most before joining the busiest queues. The official National Palaces website is the appropriate starting point for current ticket combinations and access notices. A hurried circuit risks reducing a complex place to a succession of rooms. Topkapı rewards a slower approach because it reveals the machinery and domestic setting of power, while its headland position makes the strategic importance of Istanbul unmistakable.
The most substantial encounter with Ottoman court culture, combining architecture, collections and a commanding setting.
Süleymaniye Mosque
Istanbul, Türkiye; Süleymaniye Camii, Süleymaniye, Fatih, Istanbul
Süleymaniye occupies one of Istanbul’s most commanding positions, above the Golden Horn. Designed by the Ottoman architect Sinan for Sultan Süleyman, the mosque gives architectural form to imperial ambition without depending on a restless accumulation of ornament. Its proportions, courtyard and relationship to the surrounding city are the main event. Approach with enough time to notice the transition from neighbourhood streets to the open courtyard and then to the prayer hall. Within, arches, light and the rise of the central dome establish a remarkably coherent space. Outside, views towards the water place the monument back into the wider city. The associated tombs connect the architectural achievement with the dynasty that commissioned it. This remains a working mosque, so sightseeing must fit around worship. Check visitor access locally, dress modestly and follow the current arrangements for shoes and entry. Avoid treating the prayer hall as merely a photographic backdrop. Süleymaniye belongs high in the ranking because it offers both a major work of architecture and a way of understanding Istanbul’s topography. It is especially rewarding when visited as part of a walk through the surrounding historic district, with time left for the streets below.
Sinan’s architecture and the hilltop setting provide an unusually complete encounter with Ottoman urban design.
Basilica Cistern
Istanbul, Türkiye; Alemdar, Yerebatan Caddesi 1/3, 34110 Fatih, Istanbul
The Basilica Cistern changes the scale and atmosphere of an Istanbul visit. Beneath the streets near Hagia Sophia, rows of columns extend through a former Byzantine reservoir, making a piece of urban infrastructure feel almost like an underground public hall. Built during the reign of Justinian, it supplied water to the imperial city and remains a powerful reminder that Constantinople’s survival depended on engineering as well as walls and palaces. Walk slowly enough to register the repeated columns and their changing reflections. Reused architectural elements give the structure an additional layer of history, most famously the two Medusa heads serving as column bases. Their appeal is partly the unexpected meeting of ancient sculpture and practical construction. Contemporary lighting shapes the present visitor experience, which differs considerably from the reservoir’s original purpose. Check the current operator’s ticket and access arrangements before travelling. The official tourism account confirms the attraction, but the operator’s booking information could not be fully verified during this research. Allow extra time for any entrance queue. The cistern earns its place by revealing an essential, often overlooked part of the city’s history in a space whose repetition, depth and reflected light are immediately memorable.
A distinctive encounter with Byzantine infrastructure, complementing the city’s religious and imperial monuments.
Grand Bazaar
Istanbul, Türkiye; Kapalıçarşı, Beyazıt, Fatih, Istanbul; suggested approach via Beyazıt Gate
The Grand Bazaar is a place to navigate rather than simply enter. Its covered streets, junctions and older trading structures create a commercial district within the historic city, with shopfronts drawing attention in several directions at once. The institution’s origins reach back to the fifteenth century, and the experience still depends on the close relationship between specialist trade, conversation and carefully arranged goods. Textiles, jewellery, carpets and ceramics provide obvious reasons to browse, but the building itself is equally interesting. Look above the displays to notice vaults, changes in scale and the way larger routes connect to quieter passages. Choosing one type of object to investigate can make the visit more satisfying than trying to inspect every shop. Compare materials and workmanship, and agree the price clearly before committing to a purchase. Use a recognisable entrance as an orientation point and check current trading days before travelling specifically to shop. No purchase is necessary to appreciate the district. The bazaar belongs in the top ten because it presents Istanbul’s long commercial history as an active, negotiated experience, with the architecture supporting a form of city life that a museum display cannot reproduce.
A living historic trading district whose architecture and specialist commerce are central to Istanbul’s identity.
Kadıköy market and Moda walk
Istanbul, Türkiye; Kadıköy ferry terminal, Rıhtım Caddesi, Kadıköy, Istanbul; walk through the market towards Moda
A ferry crossing to Kadıköy changes the emphasis of an Istanbul itinerary. On the Asian shore, the attractions are dispersed through shopping streets, cafés, food shops and the route towards Moda, giving the visit a less monumental rhythm than Sultanahmet. The neighbourhood rewards a modest plan and a willingness to pause. Begin near the ferry terminal and walk into the market streets, where browsing can become the structure of the morning or afternoon. Food counters, produce displays and places to stop for a drink sit alongside bookshops and other small businesses. Continue towards Moda for a different relationship with the water: here the shore is part of a residential neighbourhood’s everyday leisure, rather than the setting for an imperial monument. Treat this as a flexible walk, not a list of obligatory purchases. Individual shops and cafés keep their own hours, so avoid relying on one stop without checking it separately. The return ferry can be part of the pleasure, but consult the current service timetable. Kadıköy makes the ranking because it broadens the picture of Istanbul, joining its Asian geography to a close, approachable experience of contemporary neighbourhood life.
Adds the Asian shore and contemporary neighbourhood life to a guide otherwise dominated by historic monuments.
Istanbul Modern
Istanbul, Türkiye; Kılıç Ali Paşa Mahallesi, Tophane İskele Caddesi No. 1/1, 34433 Beyoğlu, Istanbul
Istanbul Modern introduces a city whose cultural life did not stop with the Ottoman Empire. Its programme places modern and contemporary art from Türkiye in conversation with international practice, encouraging visitors to consider how artists have responded to social change, identity and the experience of modern life. The museum provides a useful counterpoint to an itinerary dominated by older monuments. The waterfront building, designed by Renzo Piano and opened in 2023, is part of the attraction. Its setting connects the galleries with the Bosphorus and the changing Tophane district, making the relationship between art institution and city especially visible. Inside, the most rewarding approach is to allow the current exhibitions to set the agenda rather than arriving with a fixed list of works. Check the museum’s programme and visitor information shortly before attending, since exhibitions and access arrangements change. Combine the visit with a walk in the surrounding waterfront area if time allows. Istanbul Modern earns its place by giving contemporary Turkish culture proper weight within the guide. It offers international visitors an accessible starting point for artists and ideas that are less familiar than the city’s celebrated architecture, without reducing that work to a historical footnote.
A major contemporary cultural institution that gives Turkish modern art appropriate space alongside imperial heritage.
Kılıç Ali Paşa Hamamı
Istanbul, Türkiye; Kemankeş Karamustafa Paşa, Hamam Sokak No. 1, 34425 Beyoğlu, Istanbul
Kılıç Ali Paşa Hamamı makes Ottoman architecture an experience of the body as well as the eye. Built in the late sixteenth century as part of a complex associated with the admiral Kılıç Ali Paşa, the bathhouse was designed by Sinan and later restored for modern use. Its domed spaces retain a clear relationship to the bathing ritual they were created to accommodate. A visit follows a sequence of warming, washing and rest rather than the open-ended browsing of a museum. The traditional treatment is centred on the heated bathing space and an attendant-led scrub and wash, with time afterwards to recover and appreciate the building. Discuss the treatment before booking if there are elements you would prefer to avoid. Reserve directly and check the current session allocated to your visit, since women and men use the hamam at different times. Follow the operator’s preparation instructions and ask about access requirements in advance. The experience deserves its place because it joins a major architectural tradition with a continuing social practice. It also offers a change of pace after days spent walking, while remaining closely connected to the history of the surrounding Tophane neighbourhood.
Combines Sinan’s architecture with a carefully structured version of Istanbul’s historic bathing culture.
Sultan Ahmed Mosque (Blue Mosque)
Istanbul, Türkiye; Atmeydanı Caddesi, Sultanahmet, Fatih, Istanbul
The Sultan Ahmed Mosque, widely known as the Blue Mosque, gives Sultanahmet one of its defining silhouettes. Its six minarets and cascading domes form a deliberate architectural statement opposite Hagia Sophia, placing Ottoman ambition in conversation with the older city. The building remains a place of worship, which shapes both the atmosphere and the practical arrangements of a visit. Inside, the interest is in the relationship between patterned surfaces and the larger space. İznik tiles provide the detail most closely associated with the mosque’s familiar name, but light, arches and the progression of domes are equally important. The courtyard allows a different reading of the composition and should be given time rather than treated merely as an approach to the prayer hall. Plan sightseeing around worship, follow the current visitor entrance and dress requirements, and respect areas reserved for prayer. The mosque can be combined geographically with other Sultanahmet sights, but rushing between them diminishes the experience of each. Its position in the top ten reflects the quality of its architecture and its continuing religious role. Together, these make it more than a skyline image: it is a major historic space whose original purpose remains active.
A defining Ottoman landmark whose tilework, monumental composition and active religious role remain compelling.