Towering basalt columns, a creation of fire and ice.

The footprint of a frustrated devil in Munich's Cathedral.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

A garden of flying flowers.

Christ's blood allegedly preserved in a Belgian town.

This bridge was constructed from the rubble of the infamous Bastille.

135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

A lone cannonball remains lodged in the walls of the Hotel de Sens as a sober reminder of a revolution.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

Indents in the pavement are all that remain from a grisly death machine in Paris.

A mechanized clock where a man fights off a dragon, crab, and rooster.

The celebrated eyesore created by starry-eyed sweethearts.

Abandoned railway line circling the city of Paris.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This modest marker near Notre Dame identifies the very center of Paris.

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

Steadily reminding Czechia of its past.

This automated sculpture of two men peeing will spell out text messages with their micturition.

Looming communist pillar with a Czech twist.

A mocking tribute to the past and modern leadership of Prague.