The hidden jewel of Disneyland: a members only playground for the Disney elite.

The largest dinosaurs in the world, kissing above the highway.

This highest bridge in the world spans such a great chasm that it had to be established using rockets.

Beating out all other concrete competitors, this massive garden feature's pointy hat has earned it a world record.

Community bookshelf of 25-foot-tall book spines.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

A museum wholly devoted to juvenescence.

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

The perfect place to take a family of giants for a beach vacation.

Come for the speed, leave in love with the desert.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

A house carved into a rock in the 1940s.

A replica that won't float away.

Step into the cool deep past and unknown future of who begat who.

A house turned museum is the real-life "home" of the fictional main character of The Wizard of Oz.

Massive still life just off the highway in Kansas.

Small plaque marks the spot, but the true center is located about half a mile away on a private pig farm.

It's big, it's a ball, and it's made of twine—the world's largest of its kind.

A unique attraction and museum dedicated to exploring iconic roadside structures.

This stoic, if derpy, giant stands as a monument to Oregon's statehood and the novelty culture of yesteryear.

The signs of a long buried road can still be found hidden beneath a London sewer grate.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.