Scattered throughout London are ancient remnants of the city's former bounding wall.

Eighty million natural history specimens call this gargantuan museum home.

Hear the quietest sound from across the dome.

Rebuilt remains of a temple to Roman god Mithras.

This network of narrow, medieval passages has the most delightful name.

Follow the original medieval paths that wind through this intriguing section of the city.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

Created by one of England's most prolific labyrinth designers, inspired by Bath city history.

The 20th-century chapel’s intricate woodwork includes amazing details, most notably angels playing bagpipes.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

A six-ton wedding present for the King of the Scots.

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

The most loyal of little dogs, or a Victorian era publicity stunt?

The final resting place of soldiers' loyal canine companions.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

The quintessential Japanese rock garden has existed for more than 500 years.

1,001 carved statues of the Buddhist God of Mercy, each with a unique face.

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

The tangled roots of a giant banyan tree have fully reclaimed the ruins of this abandoned warehouse.

Memorial to the father of the Republic of China.

Only through deep darkness and tragedy did this elaborate royal palace become a sacred temple.

This Taiwanese promontory is covered in otherworldly hoodoo formations.

Grandpa Rainbow felt the neighborhood needed some color, so he picked up a paintbrush and went to work.