Retirement home for giant obsolete machines.

A kindergarten shaped like a cat with a tail that's a slide.

In a small churchyard in Dingolfing, Germany the quaint Schusterkapelle is there to remind you of your imminent mortality.

In 1830, cemetery workers in Cham unearthed a chamber housing thousands of skeletal remains from the 13th century, which can still be viewed today.

One of the largest legal spray spots in Hamburg.

Beloved children's TV characters freckle the German city's streets.

A hidden gem in the middle of the city's infamous Jewelry Quarter.

An art world insider finds himself battling for his artistic home.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Every Easter, a small Sicilian town builds a stunning cathedral out of bread.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

A familiar otherworldly creature guards this 12th-century Scottish abbey.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

The hidden lair of an alchemist rediscovered in a 2002 flood.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

One of the most important yet well-hidden museums dedicated to the history of medicine.

A novel collection of medical curiosities housed in an 18th-century surgeon training academy.

A subterranean playground in an abandoned slate mine.

A fantastic castle rumored to be the birthplace of King Arthur.

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

Northern Ireland's church-turned-skate park.