A remarkably well preserved tower dating all the way back to the Iron Age.

The tallest sea cliffs on the Southern Hemisphere are a climber's worst nightmare.

These homes carved into the mountains seem to defy the laws of nature.

Legend has it that not even Stalin could pull down the 2015 European Tree of the Year.

This small Estonian hill is covered in hand-made twig crosses that are said to bring good luck.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

Mysterious craters may have been home to an ancient cult.

300-year-old villagers houses and traditional churches preserve a nearly lost piece of Russian history.

Abandoned castle was once a grand example of Russian privilege, built exclusively to win a frivolous bet between noblemen.

An unused hyberbolic electricity pylon kept as architectural monument.

Where dogs like the rare "Fire-Tailed Border Cocker" run free on the mountainside.

The USSR’s Conquest of Nature lead to the domestication of many moose—no squirrel.

No one knows why ancient labyrinths were built on this tiny northern island.

An abandoned town of skeletal wooden homes.

What once claimed to be the world's tallest single-family wooden structure house.

A mysterious crater-like pond has a spooky tendency to empty and fill with complete disregard to rainfall patterns.

This wondrous waterfall rushing down a green-covered mountain wasn't discovered until 2010.

Iran's colorful terraces are a rare geological masterpiece.

A magically clear, blue river that seems to spring from nowhere.

Rock-hewn monastery complex with hundreds of cave structures tucked away into the mountainside.

Ancient rock-hewn town that witnessed key events of Georgian history.