This hidden collection of everyday objects illustrates life within communist Poland.

A whimsical menagerie of devils, krampuses, satyrs, and other horned creatures.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

The world's oldest Jewish library was founded by Sephardic Jews in 17th century Amsterdam.

Amsterdam's Red Light District leaves little to the imagination.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

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

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

A slice of central Asia in the middle of Berlin.

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

Once the home of a hermetic monk, this cave now houses a small church.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

A museum in the childhood house of a medical pioneer.

The capital of Cambodia is named after the hill on which this ancient temple complex stands.

Built by King Norodom to honor his late father.

The largest mosque in Cambodia was built to unite the country's Muslim community but soon sparked division and controversy instead.

A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

Despite having a dome made of papier-mâché this tiny observatory has survived for over a century.

A memorial to the monk who set himself on fire to protest the persecution of Buddhists in Vietnam.