An old slaughterhouse now holds the largest collection of pig artifacts.

This old wooden funicular railway leads to a cemetery in the forest.

This outdoor library provides around-the-clock access to around 7,000 books.

This natural hill rose another 130 feet from the debris and rubble added after World War II.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

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

This historic stone bridge has an entire neighborhood clinging to its sides.

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

A wunderkammer of mysterious objects and stories.

A surreal museum of extraordinary industrial objects.

Where beautiful signs live on forever.

Private collection of art inspired by cabinets of curiosity.

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

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

Three hundred years of preserved Spanish colonial history in San Antonio.

A National Historic Landmark with a scenic clock tower and park filled with deer and peacocks, plus a military museum.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

This offbeat trailer park is home to vintage peddlers, local artists, indie makers, and more.

The flock of plastic poultry is an ode to the classic comedy staple.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

At the United Kingdom's only residential library you can sleep among the books.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

One of Canada's most incredible rare book collections holds hundreds of thousands of gorgeous tomes that the general public can touch.