Hungarian mummies in beautiful painted coffins.

Legions of Roman soldiers bathed in this ancient spa complex under a Budapest transit station.

A collection of intricate sculptures so small they have to be seen through a microscope.

This hidden art nouveau gem was designed by an architect in search of a national style.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

Museum dedicated to the terror regimes of Hungary.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

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

An intricately decorated tiny place of worship.

The first island in the world designated a light-pollution-free astronomical observation point.

Walrus skulls and narwhal bones were found here while excavating a 900-year old church.

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

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.

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

The 3.8 billion-year-old rock proves that tectonic plates may have been shifting longer than we thought.

After being destroyed by two separate fires, this monastery is now home to a small zoo and relics from dozens of saints.

Dedicated to the god Dionysus, this theatre was used for both musical and theatrical performances.

View the ancient remains of buildings and the ancient "River of Hades" before hopping on a train.

The only ancient site that remains on the south bank of the sacred Ilissos river.

When construction began on this hotel, developers were surprised to find the ruins of an ancient civilization.