The legendary building that needed ghostly approval before being built.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Race through the maze, get your name on the sign.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

The story of a Floridian city as told through an obscure sport for retirees.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

A flooded Mexican cave that hides a river beneath the water.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

A grotto-like lodge decorated with gilded mosaics, rocks and a noisy waterfall was the setting for the most sumptuous pleasure house of 1900s Europe.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

The vast, legendary catacombs hold secrets much stranger than stacked bones.