Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

This brightly made over hotel hides decades of suicide, serial killers, and mysterious deaths.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Everyone remembers Laurie Strode from Halloween, but this is the house where most of the blood was shed.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

The final resting place of a space program monolith.

The largest drain hole in the world.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

An inconspicuous footbridge beloved by San Diego locals.

In this century-old literary safehouse, print is alive and well.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

Small museum packed with artifacts recovered by the man rumored to be the real-life inspiration for Indiana Jones.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

Magical-looking cottages that inspired one of the most famous animated films ever.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

A modern mechanical planetary system, part of a 10,000 year clock.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Historic marionette theater features thousands of handmade puppets and free cups of ice cream.

Historic funicular railway, believed to be the shortest railroad in the world.