This curious building hides eclectic details like medieval gargoyles alongside naked angels and Art Nouveau mosaics.

A forgotten "city of water" underneath the famous Trevi district.

The Ranger’s House exhibits fine mementos collected by Sir Julius Werner during the course of his life, including this infamous pendant.

The final resting place of New Orleans' most famous voodoo priestess.

A monument to the man who almost killed Hitler.

Berlin's oldest surviving academic architecture hosted decades of animal dissections.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.