Istanbul’s Sultanahmet peninsula holds more layers of imperial history per square metre than perhaps anywhere else on earth — Byzantine cathedral, Ottoman mosque, ancient hippodrome, and a 4,000-shop covered bazaar all within a few minutes’ walk of one another. This post accompanies the YouTube walking tour “Ultimate ISTANBUL 4K Walk | Sultanahmet to Grand Bazaar | Old City Walking Tour 2026,” which covers this extraordinary historic district in 4K. It is the complete companion to your istanbul walking tour.
About This Walking Tour
This 2026-filmed 4K walk through the Old City covers the route from Hagia Sophia and the Blue Mosque through the Hippodrome and the atmospheric streets that connect Sultanahmet to the Grand Bazaar. The video captures Istanbul’s unique street texture — the contrast between the monumental mosque courtyards and the narrow commercial lanes immediately outside them, the sound of the call to prayer echoing across the peninsula, and the visual drama of minarets against the Bosphorus sky.
The route includes the exterior of Hagia Sophia (Ayasofya), reconverted from a museum to a working mosque in 2020, whose massive dome has defined Istanbul’s skyline since 537 AD. The Blue Mosque (Sultan Ahmet Camii, completed 1616) with its distinctive six minarets faces Hagia Sophia across a garden, and both are visible simultaneously from the Hippodrome — the ancient Byzantine chariot-racing circuit whose central spine still holds ancient monuments including an obelisk brought from Egypt by Pharaoh Thutmose III around 1450 BC. The walk concludes in the labyrinthine covered streets of the Grand Bazaar.
Highlights of Sultanahmet
The Hagia Sophia, completed in 537 AD under Emperor Justinian, was the largest domed building in the world for nearly 1,000 years. Its central dome, 55.6 metres high and 31.87 metres in diameter, remains an extraordinary feat of structural engineering. The building served as a Christian cathedral for 916 years, a mosque for 481 years, a museum from 1934 to 2020, and has been a mosque again since 2020. The Blue Mosque was built between 1609 and 1616 by Sultan Ahmet I; its nickname comes from the 20,000 handpainted Iznik tiles in its interior. The Topkapı Palace, the administrative heart of the Ottoman Empire from 1465 to 1856, occupies the tip of the peninsula and houses extraordinary collections including the Prophet Muhammad’s cloak and sword, the Spoonmaker’s Diamond, and the throne room where sultans received foreign ambassadors. The Basilica Cistern (Yerebatan Sarnıcı), an underground Byzantine water reservoir built in 532 AD, holds 336 columns salvaged from earlier Roman structures, including two column bases carved with upturned Medusa heads. The Grand Bazaar (Kapalıçarşı), established by Sultan Mehmed II in 1461 after the Ottoman conquest of Constantinople, is one of the world’s oldest and largest covered markets.
A Brief History of Istanbul
The city was founded as Byzantium by Greek colonists around 657 BC. It was renamed Constantinople in 330 AD when the Roman Emperor Constantine I made it the capital of the Eastern Roman Empire. As the capital of the Byzantine Empire it remained the most important city in Europe for nearly a millennium. The city fell to the Ottoman Turks under Sultan Mehmed II on 29 May 1453, after a 53-day siege; Mehmed immediately began the transformation of the city into an Ottoman capital, converting Hagia Sophia to a mosque and founding the Grand Bazaar. Istanbul has been Turkey’s largest city and its cultural and economic capital ever since, though Ankara became the political capital after 1923.
Practical Tips
Istanbul spans two continents (Europe and Asia) and is in the Turkey Time zone (UTC+3, no summer adjustment). The currency is the Turkish lira (TRY). Turkish is the language; English is widely spoken in tourist areas. Tram T1 runs through Sultanahmet and stops at the eponymous station; the Grand Bazaar stop is Kapalıçarşı. Hagia Sophia and the Blue Mosque require modest dress (shoulders and knees covered); the mosques are free to enter outside prayer times. Topkapı Palace and the Basilica Cistern require tickets. The Grand Bazaar is closed on Sundays.
Watch & Explore More
The 2026-filmed 4K video above is a vivid, up-to-date document of Sultanahmet at its most current — watch it to preview the walk. More content at @walkingtoursvideoscom. Related guides: Athens: Acropolis to Plaka and Dubrovnik: City Walls.