Rocks carved with biblical passages in the 1800s.

A former hen house turned curiosity cabinet displays one man's lifelong fascination with cannibalism.

A Chinese meditation center in the middle of rural Sweden, partly funded by a member of ABBA.

This now-defunct synthetic fuel plant was once a major cog in the Nazi war machine.

This decommissioned nuclear power plant offers tours of its Communist-era control room and reactor hall.

An abandoned bear enclosure from a 19th-century zoo located in a Danish forest.

Built after WWII, the observatory site for the University of Copenhagen exhibits once world-class instruments.

This museum is a portal to 20th-century Denmark.

When this Iron Age bog body was discovered in 1835, it was thought that she had died recently.

The greatest amusement park in the world is wall-to-wall farting dogs, puking rats, and cows with exposed breasts for the whole family.

Iron Age "bog person" preserved for over 2,300 years.

A walkable map of the world, made from soil and stone by one man.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

The final resting place of one of the brightest physicists of the 20th century.

An abandoned swimming pool decays on the outskirts of Berlin.

The original burial place of this preeminent 18th-century Jewish philosopher was razed by the Nazis.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

At one of Berlin’s oldest churches, visitors can place mosaic tiles to help restore a medieval mural.

Reminders of the Battle of Berlin still scar the railway.

Berliners converted a bombed-out, disused lot into a community-run urban farm with its own cafe and bar.

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

Floating swimming pool within a moored vessel.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

Where once there was a train station bathroom, there is now this German burger joint.