Step inside Lucy, the world's largest "elephant."

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

Unicorns, elephants, and bears, oh my!

A tunnel with windows, so you don't miss out on the impressive views.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

The fifth-longest natural arch in the world, and the longest outside China.

The flock of plastic poultry is an ode to the classic comedy staple.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The first custom-designed building to showcase the works of Dale Chihuly is a wonderland of glass and light.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

The highest point in Washington state is a volcano covered in glaciers.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

This unlicensed collection of fast-food memorabilia sits on the site of the first ever McDonald's restaurant.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

In which a local geological marvel becomes a quaint roadside attraction.

Delicate Wurlitzers, creepy clowns, and The Noid all share space in this insane explosion of kitsch history.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

The drama of nature in full effect in this Nevada State Park.

One of the now-less-hidden floral gems of the "Emerald Necklace."

America's only nuclear missile silo open to the public.

A unique sculpture park that specializes in the huge and bizarre.