The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

The humble home where the famous beat author lived briefly and wrote one of his most famous works.

The only runway directly into the magic kingdom has been closed since 1972, but it still sings to you if you drive fast enough.

This painted blacktop brings the classic arcade game to life.

The world's first and only three-segment bascule bridge folds up into the shape of a capital "N" to let boat traffic through.

The smallest island in Manhattan is a manmade landfill dominated by a Buddhist peace arch.

The nearly 200-year-old folly has a secret spiral staircase hidden in one of its pillars.

This tiny business claims to be "the smallest pub on the planet."

Brisbane's manmade urban beach has enough water to fill five Olympic-sized swimming pools.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A small island hides in plain sight on Austin's Lady Bird Lake.

A detached cement mixer has been transformed to resemble a relic from some obscure NASA mission to Oklahoma.

The contents of this safe survived a 37-kiloton nuclear bomb.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

The only parking meter in the entire town, it is surrounded by 100 free spaces.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

Read a book next to a Midtown waterfall.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

A water pumping station disguised as a residential home to assuage concerned neighbors now tricks most passersby.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.