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.
Black Sea
2 museums and archaeological sites in the province of Bolu, with hours and what to see at each.

The 15th-century hexagonal domed tomb in Göynük, Bolu, of Akşemseddin, teacher of Sultan Mehmed the Conqueror, built by the sultan himself.
Visitor guide
A regional museum with Roman statues, coins and grave finds from Bolu's long past, plus an ethnography hall and a garden of sarcophagi and stelae.
Visitor guideFour Istanbul landmarks, each sold on its own site by the agency behind this guide — dated entry and free cancellation up to 24 hours.
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.
Justinian’s great underground reservoir: 336 columns in still water and the two Medusa heads. Fast-track entry with a digital audio guide.
Justinian’s cathedral, the sultans’ mosque and a working mosque again today. The ticket admits you to the upper visitor gallery.
A nineteenth-century palace on the water’s edge: the Selamlık, the Ceremonial Hall under its chandelier, the crystal staircase and the Harem.