A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

A 19th century artistocrat's mansion, turned into a library, hidden in a modern library.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

One Greenland town turned itself into an open air sculpture gallery with the help of a series of traditional stone artworks.

Neither bomb blasts nor heartbeats escape the giant ears of this super sci-fi Arctic outpost.

These eight mummies are the best-preserved human remains ever discovered in North America.

An experimental forest at the foreground of arboreal science is also the canary in the coal mine for climate change.

The world's northernmost flowers cling tenuously to life on desolate Kaffeklubben Island.

Small Island off the coast of Greenland.

A surprisingly beautiful abandoned World War II military base in East Greenland.

A beautiful but deteriorating monument of Soviet architecture.

A shipwreck named Desire at the shore of Batumi.

Tower with a double-helix spiral, adorned with letters of the Georgian alphabet.

Ruins of a former government building destroyed during the Georgian-Abkhaz war in the wake of the fall of the Soviet Union.

At this rare mosque in Tbilisi, Sunni and Shia Muslims pray side by side.

Despite being tiny and rural this Georgian airport looks like a sci-fi boondoggle.

Legend says these stone structures are where the doomed citizens of a vanished village sent themselves to die.

The cave holds a spectacular array of stalactites and stalagmites, including one shaped like a giant human heart.

The decaying remains of a once-luxurious Soviet spa town.

A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

A small but hugely whimsical theater where marionettes play out the "The Battle of Stalingrad."

You'll find just about anything in this funky Tbilisi flea market.

A cylinder monument with a spectacular vista commemorates a friendship that some say never existed.

Unusual building appears to be haphazardly built from randomly piled bricks.