The bronzed skull of a beheaded traitor was affixed to the city gate in the 17th century.

The compass on its front was a handy tool for 17th-century merchants who needed to know the direction of the wind.

Christ's blood allegedly preserved in a Belgian town.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

Inside this former medieval prison is a collection of objects designed to inflict unbelievable pain and suffering on the human body and mind.

The spectacular and eerie moss-covered grave site of 19th-century Belgian merchant.

The oldest cemetery in Belgium.

You've probably seen these distinctive orange-tiled columns on the big screen.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

This abandoned five-star hotel is now a five-star urban exploration destination.

A perfectly circular lake is formed by the crater of an ancient underwater volcano.

Legend has it the lovelorn tears of a princess and a shepherd boy formed the blue and green twin lakes in the Azores archipelago.

Europe's oldest still-operational tea farm also boasts a spectacular view.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

This noble mash-up in eastern Luxembourg is part Medieval, part Renaissance, all castle.

This Netherlands museum holds a gloriously mechanical collection of ornate musical automata.

Marvel at this massive waterspout fueled by the incoming tide.

These old towers extract salt from the sea.

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

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

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

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

A ruined castle stands atop a hill surrounded by dragon lore.