The giant scales in this museum can still tell if someone is one of the devil's brides just by weight.

Devious political maneuvering and four ancient, working telescopes are central to the world's second-oldest observatory.

One of the oldest masonic temples in the Netherlands, built in 1757.

Once housed in the towers of this Gothic church, this 17th century clock still ticks today.

Now a museum, this building was once a 14th-century monastery and the place where the founder of the Dutch nation lived and was assassinated.

Its town washed away centuries ago, this lonely tower by the sea tells the tale of a mermaid and a curse.

This unusually shaped mountaintop tower looks like a UFO floating over the city.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

These four islands right offshore have waterfalls, colorful lights, fancy buildings, and a secret purpose.

One of the largest burial mounds in the Netherlands and Belgium.

Unchanged for centuries, this medieval library keeps its books in chains.

The premier place to experience the Victorian imagining of the steam-powered future.

One of the world's largest Tesla coils.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

The private clubhouse for the members of the Academy of Magical Arts.

The last of its kind in the country.

World's oldest operating science fiction and fantasy club, once home to Ray Bradbury and L. Ron Hubbard.

Space program, pneumatics and more, bits and pieces, for movie sets or the common man.

The legendary building that needed ghostly approval before being built.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

An Orwellian sculpture with eyeball cameras watches passersby.

The headquarters in Salem doubles as an occult art gallery.

Hidden beneath the streets of London is a secret subway that only carried mail.