Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

The lesser-known Alice sculpture of Central Park dedicated to the “godmother of American children.”

This statue of two men in a rowboat was erected to honor those who died while fishing in the Chesapeake Bay.

A diminutive statue that was inspired by the sculptor's own daughter.

How did an Australian statue of the Bard of Avon end up in the Hungarian capital?

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

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

Also known as Uncle Karl, the beloved bronze copper keeps a watchful eye on St. Stephen’s Basilica while people rub his lucky belly.

A random tree outside a Budapest hotel has become a DIY shrine to the late singer.

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

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

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

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

A highly-criticized monument in Budapest has become the site of a makeshift Holocaust memorial.

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

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

A much-loved sculpture depicting the hero of a 1956 anti-Soviet uprising.

A bronze woman in a stylized dress honors a courageous politician.

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

Time stands still at this serene burial ground in the center of Budapest.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.