Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

Train tunnel running underneath Quebec City.

This bridge is embedded with a giant steel dragon that breathes fire from its mouth.

On Japan's Tashirojima Island, cats are king.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Home on the Hillside, and home of the first breakfast cereal.

One of the best beaches in the entire world.

The site of the climactic scene from the classic horror film is now a historic landmark.

A playground built by the kids that is a child's wonderland, and a helicopter parent's nightmare.

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

Underground hospital complex constructed by slave laborers during the German occupation of the Channel Islands.

Established in 1925, Kiddie Park claims to be the oldest amusement park in the U.S. - a cozy little time warp nestled in a shady corner of the modern world.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

A genuine Little Shop of Horrors.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

The decaying ruins of Wales' first asylum for the mentally ill.

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

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Medicinal spa created with the discharge from a geothermal energy plant.

Medical museum that houses most notably the taxidermied remains of Vladimir Demikhov's famous two-headed dog experiment.

Reportedly 1,400 years old, this may be the first of the Fiji Mermaids.

A formerly abandoned mental institute, now back in business.