This ordinary-looking mailbox has a rather explosive history.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

This historic pub has maintained much of its 1906 decor, including a small sequestered room for women, where orders were slipped through a tiny window.

A secret garden in a picturesque Edinburgh village has inspired artists for centuries.

A book bound in the skin of an infamous criminal, along with countless other specimens.

The fountain marks the area where hundreds of accused witches were burned at the stake.

This Scottish bridge seems to compel dogs to leap to their death.

The Boston square dedicated to the dark poet who was born nearby.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

Venice's "Island of the Mad."

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.