A replica of the gaslit streetlamp under which three teenagers founded a football club.

If you visit the burial place of King Frederick the Great, you'll likely find a couple of potatoes sitting on his tombstone.

One of America's founding fathers lived in this London lodging between 1757 and 1775.

Atop this library is one of the most beautiful green spaces in Warsaw.

The burial site of one of the most notorious bushrangers in Australia's history.

An eccentric Victorian aristocrat's enormous collection of medieval armor and weapons from around the world.

This small crenelated building was built by a British aristocrat who supported the American Revolution and may have named it in memory of a pivotal battle.

A small island in Lake Garda that was used as a burial site, pirate hideout, and a monastery.

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

A section of the long chain that blocked enemy ships from entering Constantinople.

Oslo's historic toboggan run has been letting thrill seekers slide from train stop to train stop for over a century.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

The remains of three Luftwaffe launch pads designed for manned anti-aircraft missiles.