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

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

A hugely vast Irish landscape of barren rock that stretches for miles.

This modest plaza in Moneygall, Ireland has cashed in on its distant connection to the U.S. president.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The biggest museum dedicated to insects in North America, one of the largest in the world.

A castle built for love, and abandoned due to heartbreak.

The highest peak in the state of Vermont has some interesting features.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

The world's brightest bioluminescent bay.

The world's second largest single-dish radio telescope, once used to contact E.T.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

A massive volcanic plug is now a protected area that hosts a number of bird species.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

See massive fossils that are over 200 million years old in northeastern Arizona.

Ancient pueblos built into the base of a natural canyon wall.

A motel dedicated to Southwestern nostalgia.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

A spiritual vortex among the red rocks in Sedona.