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

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Ship-sized kinetic sculptural fantasy.

A student driver's nightmare.

Eighty million natural history specimens call this gargantuan museum home.

One part local history, 99 parts gruesome haunted house.

This one has sailed five times as far as Sir Francis Drake's famous ship.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

The man who wasn't there.

A museum devoted entirely to the rattlesnakes and snake-related art.

A spiritual vortex among the red rocks in Sedona.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

Memorial to the 137 lives lost on a ship fire, the whole hulk of which washed up on the Asbury Park shore.

A reservoir of vintage pinball machines and arcade games for the nostalgic and thrill seeking.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

Man-made geyser that rises to the exact height of the Gateway Arch.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

Take a drunken tour inside the world's largest known geode.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

Mausoleums, astronomy, and animatronic dinosaurs at this memorial to an assassinated American president.

This former luxury resort in Kaua'i is now an abandoned relic.