Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

This massive redwood tree has a hole in the base big enough to drive through.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

The "3rd largest" city in California is an empty mirage of suburbia in the middle of nowhere.

Quite simply the largest tree in the world (by volume).

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

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 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.