The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

360° views of the city plus five floors of optical illusions and hands-on science.

With its webbed walls and bright red coloring, Calgary's iconic bridge looks like a finger trap puzzle stretched across the river.

It was once nicknamed "the most bombed hotel in Europe."

A collection of 20th-century automata, penny arcade games, and musical contraptions.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

The celebrated eyesore created by starry-eyed sweethearts.

The bullet-riddled wall from the St. Valentine's Day Massacre, bloodstains enhanced for your viewing pleasure.