This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Overlooking the burial ground is a tower designed to prevent thieves from snatching the recently deceased.

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

Remnants of the 16th-century defensive wall still stand unassumingly within Edinburgh.

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

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

Protecting the dead from opportunistic body snatchers.

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 book bound in the skin of an infamous criminal, along with countless other specimens.

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

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

An artsy hidden staircase leads to breathtaking views of San Francisco.

One of the largest trees of its kind in California.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Not truly a ship nor a building, the Navy's first and last "landship" is now abandoned due to clerical issues.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

From a distance, this statue of an eagle looks like a giant chicken on a stick.

One of the oldest theaters in Australia, it's also said to be haunted by a performer who died on stage.

Brisbane's manmade urban beach has enough water to fill five Olympic-sized swimming pools.

A hands-off space for graffiti artists to hone and display their skills.

Banksy gives themself artistic license with this piece of London street art.