An unusual "skull with ears" sits in the crypt of this small church tucked away at the end of a narrow alley.

Locals pay their respects at a shrine to soccer player Diego Maradona—which claims to contain a real lock of his hair.

This 17th-century passageway is home to numerous bookshops, a witch legend, and the oldest pizzeria in the world.

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

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

This gallery commissioned by Cardinal Spada is known for its magnificent optical illusion.

This unassuming bridge is most likely one of Michelangelo's unfinished masterworks.

This hidden alley near the location of Rome's first theater was the site of a curious miracle.

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

Architectural monsters are devouring this palace's every door and window.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Romans decided this 16th-century "talking statue" was so ugly, they named it after a primate.

The Vatican's secret porn-festooned bathroom was painted in erotic murals by one of the greatest artists of the Renaissance.

While exploring the desert, you can stop by the home of a fictional heretic from a parallel universe.

A regular looking rock with an unbelievable history.

Located on 420 acres in the high desert, this spiritual center is dedicated to the "science of the future."

On a barren hillside in the Yucca Valley, the recently restored Desert Christ Park has attracted pilgrims and kitsch hunters for over 50 years.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

The quirky salon doubles as a retro museum run by the world's leading "hairstorian."

An eerie natural formation that looks right back at you.

Meet 'Big Josh,' the 20-foot-tall muffler man.

An old California photo stand has been turned into a shrine to the cozy art of crochet.

Explore 10 acres of environmental sculptures.

This collector's home is a constant work in progress.