Istanbul in a day: Sultanahmet
8 h route5 stopsBest: Start at 9am. The Grand Bazaar shuts on SundaysUpdated July 2026
Everything you’ve seen of Istanbul in photos sits in the same square kilometre: Sultanahmet, the tip of the old city where Constantinople was the capital of two consecutive empires, Byzantine and Ottoman. Hagia Sophia, the Blue Mosque, Topkapı Palace and the Basilica Cistern all touch each other.
It’s a full day and all on foot, no transport needed. Start at nine to beat the groups, and bear in mind the mosques are working places of worship: they close to visitors at each of the five daily prayers, and there’s a dress code.
The route, stop by stop
5 STOPS- 01
Hagia Sophia (Ayasofya)
The most important building in the city and one of the most important in the world. Raised in 537 as a Byzantine cathedral, it was the largest church in Christendom for almost a thousand years. In 1453 the Ottomans turned it into a mosque, in 1935 Atatürk made it a museum, and in 2020 it became a mosque again.
That history is on the walls: golden Byzantine mosaics of Christ and the Virgin share the space with vast calligraphic medallions bearing the names of Allah and Muhammad. There is nowhere else like it.
The upper gallery, where the best mosaics are, has its own visitor ticket.
- 02
The Blue Mosque (Sultanahmet Camii)
Facing Hagia Sophia, staring it down: Sultan Ahmed I raised it between 1609 and 1617 with the ambition of surpassing it. It’s known as Blue for the more than 20,000 İznik tiles lining the interior, and it has six minarets, which scandalised people at the time because only Mecca had that many. It’s a working mosque, so entry is free but it closes to tourists during the five prayers. Shoulders and knees covered, women with heads covered (scarves are handed out at the door), shoes off.
- 03
Topkapı Palace
The residence of the Ottoman sultans for 400 years, on the tip of the promontory with views over the Bosphorus and the Golden Horn on both sides. It isn’t a European single-building palace: it’s four linked courtyards, each more private than the last, with pavilions scattered among gardens.
Inside are the treasury, with the Spoonmaker’s Diamond and the Topkapı dagger, and the chamber of sacred relics. The Harem, the best part of the complex, needs a separate ticket and is worth paying for.
Allow two or three hours: it’s vast.
- 04
The Basilica Cistern (Yerebatan)
An underground water reservoir from the year 532 that supplied the Byzantine Great Palace: 336 marble columns, many looted from Roman temples, holding a vaulted ceiling above the water, lit and set to music. It looks like a submerged temple. In one corner are two Medusa heads reused as column bases, one on its side and one upside down, with nobody quite sure why. It’s cool and dark: the best midday refuge in summer.
- 05
The Grand Bazaar (Kapalıçarşı)
One of the oldest and largest covered markets in the world: it opened in 1461, has around 4,000 shops across 60 covered streets, and is a maze where getting lost is part of the plan. Carpets, gold, ceramics, lamps and spices.
Two warnings: it shuts on Sundays, so don’t leave it for the end of your weekend. And here you always haggle, it isn’t optional. The first price you’re quoted is the opening bid, and countering offends nobody: it’s the game.
Frequently asked
Can you see Istanbul in a day?
Sultanahmet, yes: Hagia Sophia, the Blue Mosque, Topkapı, the Basilica Cistern and the Grand Bazaar are in the same square kilometre and are done on foot in a day. The Bosphorus and the Asian side need another day.
Can you go inside the Blue Mosque?
Yes, and it’s free, but it’s a working mosque: it closes to visitors during the five daily prayers. Shoulders and knees must be covered, women cover their heads (scarves are lent) and shoes come off.
When is the Grand Bazaar closed?
It’s closed all day on Sundays, and on some religious holidays too. Leaving it for the Sunday of your weekend is a classic mistake: plan it for a weekday or Saturday.