Hagia Sophia has seen it all – Byzantine cathedral, Ottoman mosque, museum, and mosque again – and this private tour lets you unpack those layers with a guide who knows the building inside out. You’ll wander under the massive floating dome, spot Christian mosaics peeking through Islamic calligraphy, and hear the stories behind its wild changes over 1,500 years, right up to the recent return to active mosque status. No big group, no rush – just your party and an expert who makes the history feel alive while you stand in the very spots where emperors and sultans once did. The kind of visit that turns a famous landmark into something you really understand.