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

This magnificent museum claims to house the cranium of a disciple and the skull of a pope.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

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

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

The fairy tale castle of the "fairy-tale king."

Beneath the city of Lourdes, France is a massive, concrete church.

The celebrated eyesore created by starry-eyed sweethearts.

This plaza is home to a number of works, including Montpellier‘s own Arc de Triomphe.

Immortalized by artists, this church incorporates a medieval lighthouse into its shoreside structure.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

An abandoned textile mill that is now home to art and concerts.

The only museum outside of Australia dedicated to exhibiting the artwork of Indigenous Australian artists.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

Outdoor exhibits explore the contributions of European, African, and indigenous peoples to American frontier culture.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

Traditional 15th century Chinese garden in the middle of Vancouver.

Take in a sweeping views of Guanajuato—and save yourself a hike up a steep hill—on this funicular.

Colonial architecture meets urban art in this sprawling open-air gallery.