Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

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

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

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

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

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

After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.

The final resting place of a woman who never gave up on love.

Once the gateway to the utopian dream-village of a Civil War embalmer.

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

World's largest collection of serial killer artwork and other macabre exhibits.

'Cause the fence start shaking, the earth was quaking.

Massive prehistoric mammals used these stones as oversized scratching posts.

The largest Star Wars collection in the world is its own galaxy of collectibles.

California's own majestic geyser is powered by a subterranean volcano.

Nursery with extensive collection of flesh-eating plants operated by the author of "The Savage Garden."