A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

The smallest post office in the United States is no bigger than a broom closet.

This spiny beast guards an artist's village while vying for the title of largest lobster in the world.

A millionaire's abandoned swimming pool from the gilded age of one of America's most distinguished families.

A haunted hill that supposedly defied gravity.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

The site of one of history's most indelible and horrific tragedies.

A semi-scholarly approach to sex.

There must be a pun in this haystack somewhere...

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

A terrific purveyor of natural history objects and curios.

The museum chronicling a treasure hunter's dream, fulfilled.

"We Seceded Where Others Failed."

A monument celebrating the idea of reaching inaccessible places.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

The former estate of the Guggenheims, part of the opulent Gold Coast that inspired the Great Gatsby.

An eccentric playboy's astounding natural history collection.

This woodland architectural installation acts as a camera obscura for the heavens.