Vast network of air raid tunnels beneath Lombardy's capital.

The train platform where Jews were sent to concentration camps is now preserved as a Holocaust memorial.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

Have tea in a cemetery with a dazzling view of Istanbul.

A meow-velous tribute to a beloved street cat, made famous on the internet.

An Art Nouveau gem hides beneath the layers of city grime obscuring this once-magnificent building.

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

A long-abandoned provincial prison left to crumble in the frigid air of Ontario.

This mineral lake known for its healing powers is so buoyant it's been dubbed the "Dead Sea of Canada."

The Twisted Trees of Alticane are an unnerving grove of Quaking Aspen, apparently mutated from a single source, giving them a twisted and unnatural appearance.