This innovative steam machine was no doubt the most famous of the pioneer locomotives.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

An open air haven for tropical monkeys in the damp moors of the English country.

This chain of artificial lakes was an ideal test ground for the aircraft that would carry the "bouncing bombs" used by the WWII "Dambusters" squad.

One of three sites in England that house the National Collection of Arms and Armour.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

A desert that rolls right up to the ocean, where it's so dry animals live off the fog.

The Liverpool street made famous by the Beatles is real.

The opulent home that inspired Tintin's Marlinspike Hall and the adventures within.

Despite centuries of architectural innovation, this French castle is being built like it's the 13th century.

The world's largest reflecting pool is just two centimeters deep.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The real-life site of Ichabod Crane's infamous gourd attack.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

"A hideous albatross in the Hudson River Valley."

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

This giant temperature attraction created some giant electric bills.

Several land speed world records were shattered at this Welsh beach.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

Museum celebrating the history of computers, especially their role in codebreaking.