Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Art and a pun, all in one.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

The most visited, and possibly most controversial, museum in Germany.

Cold war icon and onetime "hole" in the iron curtain.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Berlin's beloved bear is immortalized at the Museum für Naturkunde.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

A Nazi concentration camp and Anne Frank's place of death.

The world's oldest rose is so tough it survived being bombed in World War II.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

Swedish mice can dine at the Nuts of Life restaurant or take a date to the amousement park.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

A Christian retreat founded to welcome refugees fleeing from the Nazis during World War II.

Spitalfields' regal market goat is said to be a monument to the area's migrant population but most are pretty sure it's just a goat.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

This small museum in a former church crypt contains artifacts of the Elephant Man, Jack the Ripper and Florence Nightingale.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Regency-era excess on the English Coast.

Hamburgers are intensely proud of their tunnel beneath the river.

After sunset the heart of Zanzibar's historic Stone Town neighborhood transforms into a culinary playground.

3,000 market stands in five former Zeppelin hangars.

A former Latvian headquarters of the brutal KGB secret police is now open as a grim reminder of their atrocities.