Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.

Nancy Thompson's Home from "A Nightmare on Elm Street."

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

The biggest pinball arcade in the world has over 600 pinball machines, and 300 arcade machines.

A meditative space out of a fantasy story.

The largest permanent Monopoly board makes one of the longest games even bigger.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

The largest drain hole in the world.

This little museum in the town where zombies were born celebrates the living dead.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

The rocks in this arid basin leave trails of movement behind them.

Medical and zoological curiosities for sale.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

An extraordinary mixture of natural beauty and man-made phenomena.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

The oldest surviving synagogue in New York City is now a soaring art space.

A natural gas leak provides a flickering flame beneath a waterfall.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

A popular swimming hole that hides one of America's most deadly diving spots.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.