A heavenly experience, right here on Terra Firma.

France's national museum of scientific and industrial instruments.

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

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

France's most famous cemetery, with some of its most curious tombs.

The oldest stone house in Paris was built by its most famous alchemist.

This massive library holds what was once the largest book collection in the world.

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

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

Ruins of a German Castle on top of a towering stone pillar.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

Outdoor art exhibition made of classic Tetris pieces.

A marvel of technology a century ago, this disused power station now offers a lovely glimpse into the industrial design of the past.

Center filled with hands-on displays served as a tribute to several astronauts with connections to the state.

A quaint miniatures museum that turns its focus towards the lives of Americans in a simpler time.

This former quarry is now a vibrant labyrinth of magical in situ sculptures.

Macabre museum devoted to historical Viennese murders.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

Collection dedicated to funeral rites, equipment, and mourning rituals of the Viennese.

Handsomely crafted representations of our round planet.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

The beautiful baroque library of the Hapsburg empire.