The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

This ancient Irish religious site is covered in ancient carvings, many of which have barely aged.

One of Ireland's most infamous prisons for rebels including men, women and children.

The ancient tomb acts as a calendar that keeps perfect time.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

New York City's smallest piece of private property.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Try not to get slimed in Tribeca.

The world’s largest combined collection of U.S. and Russian aircraft got its start in a poultry building.

A whimsical monument marks the highest point in Kansas, not that you could tell by the looks of it.

It's big, it's a ball, and it's made of twine—the world's largest of its kind.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.

These boots are made for selfies.

Three hundred years of preserved Spanish colonial history in San Antonio.

A gorgeous garden oasis with winding paths, stone bridges, and a troubling history.

The Grand Canyon of Texas.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

A cave's rare beauty held a cavernous secret hidden underground.