Sloth rehabilitation center in the jungle of Costa Rica.

This Costa Rican topiary park is a surreal garden of unearthly delights.

Where dogs like the rare "Fire-Tailed Border Cocker" run free on the mountainside.

This spectacular track has run continuously since 1882.

No one's quite sure why there's a metal megaphone bolted on two rocks in the middle of the Mojave Desert.

A Franco-era dam flooded (almost) everyone out of this centuries-old Aragonese town.

Thirty creepy ghosts now inhabit this decaying 14th-century church.

Parts of this palace are upheld by merely palm stems or reeds supported by palm tree beams.

Resting place of Hollywood's immortals is also site of summer film screenings.

The historic “pink house on the hill” is an architectural gem that now serves as a center for water conservation.

A breathtaking 19th-century trail overlooks Lake Tahoe.

This Nevada lake holds its titular natural pyramid and, if the legends are true, a number of dangerous spirits.

This old mining town, deep in the California desert, has a year-round population of one.

The location of the last stand of Charles Manson's doomsday cult.

An eccentric home in Sicily turns heads on a regular basis.

Two of the few remaining life-sized Greek bronzes were submerged in the sea for over 2,000 years.

This quaint Hungarian railway system is operated exclusively by children between the ages of 10 and 14.

The world's largest historic armory was established by independent citizens to defend themselves from the wars of larger forces.

At first glance, this area seems like just another city park, but the lush landscape hides a dark past.

An abandoned 19th-century iron factory perched along the outskirts of an idyllic village.

Too much gossip or just missing curfew could land you in here for a couple of days.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

One of the first hotel rooms in a pod.

An unlikely hit, this museum is dedicated to the inventor of instant ramen and cup noodles.