Places Adelian Wants to Go

A marvel of Byzantine engineering under the streets of Istanbul.

A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.

A sixth-century Byzantine cistern hidden below a modern carpet store.

This lucky bronze frog was gifted to Madrid by a casino.

This unassuming bookstore in the heart of Madrid is one of the oldest in Spain.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

The cave of a 12th-century hermit is still visited and venerated today.