This glass skywalk offers vertiginous views down the volcanic cliffs to the beach below.

Indigenous cultures believed all life would end if this enormous rock toppled.

This mountaintop observatory is home to one of the world's largest reflective telescopes.

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.

The ruins of a fairytale castle with a tumultuous history stand high atop the mountains.

The largest caravanserai in Cyprus also includes amazing examples of Ottoman architecture.

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

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

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

An ancient monastery, a locked room, and a mysterious book heist.

A geothermal energy project gone wrong is fracturing the city's picturesque architecture.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

There has been an astronomical clock on this spot since the 14th century.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

The great Danube river starts here.

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

This ancient ruined monastery has been destroyed by fire so many times that it seems like God hates it.

A unique showroom for bathroom fixtures featuring a giant toilet observation deck.