Once described as the "Eagle's Nest," this ruined ancient city rests on a remote mountaintop.

More than 10,000 spoons, some more than a century old, are gathered here.

The bust of a 15th-century Albanian leader in the middle of London.

This arch granting triumphal entrance into Antalya was designed to honor the emperor's visit.

Hidden in the garden of physicist Erwin Schrödinger's house is a life-size figure of a cat from his famous thought experiment.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

After the owner of this Art Nouveau home died, it was turned into a museum displaying a lifetime dedicated to art.

These hilariously laughing bronze figures lampoon empty promises while encouraging civic engagement.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

Sitting beneath an unremarkable residential building is a museum devoted to classic Pinball.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

The romantic garden was the epicenter of the Hungarian art scene in the 1880s.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

This statue of a falling man commemorates a teenage martyr of the Hungarian Revolution.

A collection of intricate sculptures so small they have to be seen through a microscope.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

Some of the greatest minds in the history of Hungarian art and science converged in this café.

The metal leaves on this tree are engraved with the names of Holocaust victims.

From cartoon characters to tiny tanks, a guerilla sculptor's little bronze statues are hidden throughout the city of Budapest.

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