The Kuhna Ark museum in Khiva is a fascinating glimpse into the history of the Khivan rulers. Originally built in the 12th century and expanded over the centuries, this fortress served as a residence for the khans and housed various important buildings like the summer mosque, mint, harem, and council chambers. Visitors can explore the beautifully tiled courtyards, throne room, and even climb up to the watchtower for panoramic views of the city. Don't miss the Zindan jail exhibit with its chilling displays of torture devices and execution methods.