This sprawling mini-golf empire is an impressive testament to a disappearing attraction.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

At 207 feet, one of the world's longest continuous escalators.

The site of the climactic scene from the classic horror film is now a historic landmark.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

Look closely and you’ll notice that the color changes a third of the way up the tower.

One-of-a-kind museum inside the first Boeing 747-400 ever made.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Train cars and railroad artifacts abound at this restaurant devoted to railway history.

For over 100 years, this Indiana town has had a tree growing out the top of the local courthouse.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

You thought Santa Claus didn't exist, but it turns out you were wrong.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

The overgrown remains of one of the premier auto-racing speedways in the Midwest—and also one of the most deadly.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

This old-fashioned carhop restaurant gave the world the waffle cone.

The spaceship-like theater, which is still in use, was one of the most popular exhibits at the 1964 New York World's Fair.

One of Frank Lloyd Wright's final works was this UFO church.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

An off-the-beaten-path place to literally hang beneath Milwaukee's Holton Street Bridge.

Six tiny houses built for working class people form the largest intentional cluster of Wright homes anywhere.

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.

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