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.

A tuff-carved underground settlement near Avanos in Cappadocia, made of galleries linked by tunnels and only partly cleared.
Cappadocia is honeycombed with underground settlements: estimates suggest around 150 to 200 of them of various sizes, and more are likely to be found, since almost every town and village in the region has rock-cut spaces. Most were made by cutting down into soft tuff to create deep caves, and the main aim was safety.
Their layout follows a defensive logic. Rooms and galleries are linked in a maze that slowed down any enemy who entered, and Özkonak is a clear example of the approach. The city lies in the village of Özkonak, 14 kilometres from Avanos, cut into the northern slopes of Mount İdiş, where the layers of volcanic tuff are especially thick.
Only part of it has been cleared so far. In the sections that are open, galleries stretch across a wide area and are joined by tunnels, giving a sense of how large the underground network was and of how much of it remains hidden.


According to the Ministry’s listing it opens at 08:00 and closes at 20:00 (last entry 19:15). Open every day.
No. This site sells no tickets. Topkapı Palace, the Basilica Cistern, Hagia Sophia and Dolmabahçe Palace are sold on our sister sites; for Özkonak Underground City, buy at the ticket office or on the Ministry’s official e-ticket system.
Özkonak Underground City is in Nevşehir, Türkiye — Camii Kebir Mah. Turizm Cad. No:34 Özkonak/NEVŞEHİR.

A rock-cut Byzantine church of 964–965 near Göreme, with a two-floor plan, monks' rooms below and frescoes of Emperor Nikephoros Phokas and his family.

Three valleys of fairy chimneys in Cappadocia, once a Christian monastic settlement, with rock-cut churches, Saint Simeon's chapel and dovecotes.

A tenth-century rock-cut church in the El Nazar valley near Göreme, painted in an archaic style with scenes from the life of Christ.

The most prized church of the Göreme Open Air Museum, a cross-plan rock church whose frescoes stayed vivid because so little light reaches them.

Cappadocia's best-known rock-cut monastic complex, with frescoed churches, chapels and refectories from the fourth to thirteenth centuries.

A labyrinth of tuff-carved rooms and tunnels eight levels deep at Kaymaklı, built as a refuge and still walkable on four lit levels.
Four 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.