Mass grave of 50 unidentified French Soldiers who died at the Siege of Yorktown, 1781, that gave victory to the American Revolution.

A collection of vehicles across American military history.

The maritime museum that boasts the largest nautical library in the western hemisphere.

Some of the largest trees of their kinds exist throughout Williamsburg’s historic core.

Every year, the colorful murals of Montreal get a complete makeover.

A mysterious mountaintop temple infamous as the legendary home of the Tengu

This 14th-century temple is also known as the "Temple of the Golden Pavilion" for its gorgeous gilded reliquary hall.

With over 12,000 different species of plants, this botanical garden is Japan's oldest and most diverse.

This 700-year-old street food market features baby octopus and soy donuts.

Architectural monsters are devouring this palace's every door and window.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

This curious, round temple is the oldest still-standing marble building in Rome.

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Go inside to really appreciate this 500-year-old technological masterpiece.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

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

In this truly magical place, rent hasn't been raised since the year 1520.

Norway's oldest cathedral still in use.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

Monuments don't get much more metal than these three giant viking swords planted in a Nordic hill.