The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

This charmingly homemade amusement park has been growing for 40 years.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

Eighteen miniature death-scene dioramas.

A model home in the Medical Examiner's Office in which grisly death scenes are staged to train forensic investigators.

The site where Poe “in great distress, and ... in need of immediate assistance” likely died.

George Washington's dentures and Queen Victoria's dental instruments are in the nation’s official museum of the dental profession.

The trials and tribulations of marking Poe’s grave.

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

At this hidden studio, the dying art of taxidermy is alive and well.

A former suicide bridge is now accumulating symbols of love instead of a body count.

The so-called "Bridge of Thighs" in Palm Springs allows nudists to discreetly cross the road.

It's not your typical library, memorial, or book store.

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

A burnt-out motel with priceless Native American artwork in the basement, redeveloped into apartments.

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

Every equinox this Maya pyramid puts on a spooky ancient light show.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

Started as a kitchen garden, now the second largest botanical garden in the world.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Weird wax anatomical models reside here, as do other anatomical specimens.

The celebrated eyesore created by starry-eyed sweethearts.

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.