This colorfully-painted tunnel links two distinct parts of a historic neighborhood.

A massive stone fox oversees a Rotterdam elementary school crosswalk.

A journey through 430 years of bulbiculture in the Netherlands.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

It's safe—and permitted—to walk across these twin natural sandstone arches.

Admire a Lilliputian replica of the fast food outlet.

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.

A UFO-shaped event building originally intended to be a science museum showcasing the future.

A 30-foot-high stream of chocolate flows continuously at the Lindt Home of Chocolate.

A unique bridge with an equally unique view.

An eatery for UFO seekers on the Extraterrestrial Highway.

This sign designates the road that leads to the infamous Area 51.

Mysterious meeting place for UFO hunters near Area 51.

The self-proclaimed gateway to the Extraterrestrial Highway.

One of the few remaining indigenous petroglyph sites in Nevada.

Many believe these images represent interstellar lifeforms.

This fog-enshrouded, antique corner store sells individual slices of wedding-fancy layer cakes from a window.

The fairy tale castle of the "fairy-tale king."

Family-run for more than a century, this pizzeria makes a unique mustard pie.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Someone really, really wanted to save this fast-food icon from demolition.

Abstract dinosaur models in London.