At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

The yawning maw of this pagan visage is said to bite off the hands of liars.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

An alchemist's "magic door" stands in the middle of a Roman park.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A 16th-century horror show built in a lovely Italian garden.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

This is the largest cemetery in Ireland and the first cemetery museum in the world.

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

A rocky Irish outcropping with a history of wealth, conflict, and ruin.

A steam trawler with a whiskey-soaked history driven ashore in 1960 resides rusty but still standing on the shoreline.

A fantastic reconstruction of a 10th-century Viking longhouse.

A popular Icelandic children's story comes to life inside this cave.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

In Northeastern Iceland lies something of an oxymoron: a steaming desert.

This memorial garden is the final resting place of many beloved pets including that of a famous explorer.

A shrine dedicated to the sacred white snakes of Iwakuni, whose albinism has been passed down for generations.

This temple contains what might be the world's oldest optical illusion.

The ruins of this former mining boomtown once housed over 3,000 people. Now, the population is two.

An unexpected ghost village lurks on the southeast coast of Tenerife.

This monument is a stark reminder of the horrors of the Zanzibar slave trade.

Hidden under the thick tropical vegetation of a cemetery is the tomb of Columbo Sahib.

This cemetery is home to numerous granite headstones that are works of art unto themselves.

This former school is now abandoned and a canvas for graffiti artists.