A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

The longest and widest floating bridge in the world.

The Neolithic megalith was one of the first archaeological ruins protected by the British government.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

Cornish legend says these ancient circles were people turned to stone for playing hurling on a Sunday.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

This Portland Art gallery doubles as a studio that supports adults with intellectual and developmental disabilities.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

Before becoming a public park, this spot was a shell midden, a fort, and an amusement park.

The location of this historic castle was inspired by a donkey.

This colossal ancient jaguar sculpture was used as a vessel for the hearts torn from sacrificial victims.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

The dairy farm in upstate New York where nearly half a million people gathered for three days of peace and music in 1969.

The blinking light atop the iconic landmark has been sending secret messages for decades.

The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

This great stone guardian of the forest is a relic from the land's volatile volcanic past.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

The largest copper mine in Arizona, this enormous open pit emerges from the hills like an alien landscape.

You can crawl inside this atmospheric 5,000-year-old tomb.

The second-oldest garden cemetery in the U.S. was also a college brainstorm spot of Stephen King.

A Roman spa buried deep beneath the City of London.

This foreboding building was the headquarters of the terrifying Spanish Inquisition in Mexico.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.