Topkapı Palace
The sultans’ palace on Sarayburnu: courtyards, the Imperial Council, the treasury and the terraces over the water. Dated entry, sold online on its own site.
Marmara
Museums in Sakarya
1 museum or archaeological site in the province of Sakarya, with hours and what to see at each.
Other cities in the region
Istanbul tickets online
Four Istanbul landmarks, each sold on its own site by the agency behind this guide — dated entry and free cancellation up to 24 hours.
Basilica Cistern
Justinian’s great underground reservoir: 336 columns in still water and the two Medusa heads. Fast-track entry with a digital audio guide.
Hagia Sophia
Justinian’s cathedral, the sultans’ mosque and a working mosque again today. The ticket admits you to the upper visitor gallery.
Dolmabahçe Palace
A nineteenth-century palace on the water’s edge: the Selamlık, the Ceremonial Hall under its chandelier, the crystal staircase and the Harem.