An ancient octagonal weather station named for the eight Greek gods of wind.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

Portugal’s highest lighthouse has one of the most impressive focal planes in the world.

These small, triangular, colorful houses are a staple of Madeira Island.

A centuries old castle atop a dormant volcano houses museums devoted to both women and witches.

Every spring, locals see the shadowy figures of a ghost army of slain Greek soldiers descend upon this ruined fort.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

Physicist’s epitaph provides final confirmation to a career of turmoil.

These relics of the city's past now exist as a prominent modern feature.

The first modernist church in Europe.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

The beautiful baroque library of the Hapsburg empire.

The world's largest collection of intentionally useless inventions.

The first museum in the world devoted to sexual gadgetry.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

Dedicated to one of the darkest moments in Irish history.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

Silverware in the sidewalk outside a grocery store cements this neighborhood’s Italian culinary history.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.