Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

Edinburgh’s version of the Sistine Chapel is this former church, with an interior covered in paintings done by one woman over the course of nearly a decade.

An artist's whimsical transformation of everyday objects.

360° views of the city plus five floors of optical illusions and hands-on science.

The fountain marks the area where hundreds of accused witches were burned at the stake.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

A 18th century graveyard and its astonishing cortege of macabre iconography.

A roadway designed for a visiting monarch.

Summer in Scotland begins with a spectacularly wild and colorful event rooted in ancient pagan traditions.

This strategic isle was once swapped between empires and almost entirely destroyed in a bomb explosion.

The Suurhusen church tower in Germany leans over farther than the famous Leaning Tower of Pisa.

When ecosystems collide in the arid Southwest.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

Inside this store, a mysterious statue draws visitors from the world over.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

This influential Renaissance-era library was once the haunt of kings and monks.

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.

Bridge that died in war and was resurected.

This abandoned fighter jet launch center is now a haunting street racing course.

The ruins of an Estonian prison are drowning in the quarry lake where the convicts were once forced to work.

Wars fought and wars won are remembered by these abandoned bunker ruins.

This Estonian watchtower looks like a big tree with two giant bird nests on it, complete with a "golden egg."

This old Estonian mine has been kept like a sprawling time capsule of the local shale industry.