According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

This unique rock formation is quite the local celebrity, although one day it may come crashing down.

This local emblem is the oldest and largest dragon tree in the Canary Islands.

A large collection of solar and night-time telescopes dot a small area on the Teide mountain range.

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

Hundreds of caves once used to store grains and animal feed.

This beautifully verdant lagoon is tucked below a massive volcano in a crater atop a black pebble beach.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

This enormous gold Buddha statue was hidden inside a stucco decoy for centuries.

This surprising museum tells the story of modern Malaysia through the history of its law enforcement.

Cartoon clouds and nature-inspired murals have transformed the streets of Kuala Lumpur.

The mark of the Devil's horns on a marble column in Milan.

If you ever wanted to touch a medieval mercenary’s three testicles, look no further.

Angels and demons watch over newspapers in this deconsecrated church.

It's believed that the dead were once taken out of houses through these now walled-up doors.

At the entrance of this chapel is a fresco commemorating the dead from the plague outbreak of 1630.

San Gennaro, the patron saint of Naples, greets pedestrians between these narrow city streets.

The Neapolitan Cult of the Dead still cares for the skulls at this mini-Fontanelle.

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

The sacristy of this church contains remains and relics of members of the Aragonese royal family.

This medieval city gate is now a blend of the past and the modern world.

This monumental fountain has moved around the city multiple times.

The ancient Greek Titan guards this massive dam holding a lightning bolt to symbolize electricity.

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.