A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

America's first serial killer rests in anonymity.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

This whimsical fountain pays tribute to Toronto's four-legged friends.

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

The medieval woodcut-style artwork chronicles life in medieval London.

This intricately carved and hilariously huge bed was such a famous symbol both Shakespeare and Byron used it in their writing.

One of the figures in this Celtic sculpture continues to puzzle archaeologists.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

The Tudor-style cottage in the middle of the square is not quite what it seems.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

The cedar tree in Highgate Cemetery earned its title by accident.

This coffee shop lies hidden beneath a historic church.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

London's smallest police station is barely the size of a phone booth.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.