Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

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

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

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

Limestone caves with spectacular showcase chambers.

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

One of the oldest Mexican restaurants in the United States air-dries its trademark beef in a dangling outdoor cage.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A spiritual vortex among the red rocks in Sedona.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

A mysterious "wedding cake" castle in the middle of the urban desert.

A geological mystery on Camelback Mountain.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

A history of tragedy and a pile of eerie stories have contributed to this house's consistent ranking as one of the most haunted places in Ohio.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

The only depiction of Abraham Lincoln holding a weapon, and the names of all 9,000 Cuyahoga veterans of the Civil War.

Not quite the menace it once was, this monster still has some chops.

This isolated Japanese mountain village untouched by time showcases unique and stunning traditional architecture.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

Peace Park and the Atomic Bomb Dome.