A charming beach town in Turkey captures all the colors of the rainbow.

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

Lava stone structures possibly dating back to the 19th century may have been a stopping point for voyagers between ancient Egypt and the Mayan Civilization.

Volcanic rocks ground down into sand make this Spanish beach as black as night.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

Macabre astrological automaton clock dating to the late 1400s.

In the hinterlands of Serbia's capital, a giant reflective mushroom houses an aeronautical history of the former Yugoslav republic.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

This neighborhood thoroughfare is haunted by dozens of homemade monsters.

Erotic art covers the walls of the largest ancient pleasure palace.

A solar-powered primary school inspires hope and experimentation in a country ripe for energy innovation.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

This 16th-century house tells the city's history through old artifacts and quirky tales.

12,000 sq. ft. museum tracing erotic art from antiquity to modern times.

Radioactivity still cause for concern at this urban explorer's paradise.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

The curiosities and wonders of pharmacy in a delightful historic building.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

The walls and streets of the ancient city are peppered with penises.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

The modern birthplace of Irish freedom.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Look closely and you’ll notice that the color changes a third of the way up the tower.