A 19th-century shrine covered with prosthetic body parts as votive offerings.

The only rotating bar in New Orleans has been slowly spinning since 1949.

The ruins of a town wiped out by the second-largest earthquake in recorded history.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

Mind-blowing carvings and fantasy ice scenes grace the largest year-round ice environment in the world.

The king of U.S. high points towers over every other peak on the continent.

This whimsical stacked cabin looks like something out of a children's book.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

A DIY art gallery/music venue/lecture hall dedicated to video game culture.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

Try not to get slimed in Tribeca.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

Enormous lake at the bottom of a unique cave system.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

Elvis's own personal tropical hideaway.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

This shrine to the patron saint of Alaska sits on a small tidal island and was built from the land’s own beach stones.

This WWII-era military installation once held an entire city within its walls - now, its walls are falling down.

The second tallest railway trestle bridge in America.

This private home is famous for appearing in the cult-classic "Twin Peaks" series.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

The final resting place of one of the most sensational guitar players of all time was created only after his father got the rights to his music.