An abandoned town is hidden in Great Smoky Mountains National Park.

The ruins of the second of three churches dedicated to the saint in a touristic Scottish town.

A mass grave for victims of an airline disaster that led to much-needed safety improvements for commercial flights.

These elusive, isolated rodents evolved into a distinct, locally iconic subspecies.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

Protecting the dead from opportunistic body snatchers.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

Oldest building in California still in use.

A massive volcanic plug is now a protected area that hosts a number of bird species.

"We Seceded Where Others Failed."

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

A building so large that it has its own weather.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

A fitting attraction for the corn capital of the world.

A six-ton wedding present for the King of the Scots.

The world's longest known cave system.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

The most loyal of little dogs, or a Victorian era publicity stunt?

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

This historic train station has been converted to a locomotive themed hotel.