Breathtaking and huge 430 year old maps of Italy.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

Collection of skeletal systems from the "world's leading supplier of osteological specimens."

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

The first declared National Monument in the United States.

Since the 1700s, this old barrel has acted as a post box that relies on the kindness of travelers.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

Once close to extinction, there is no shortage of elephant seals on the beaches of Año Nuevo State Park.

An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

The Grand Canyon of Texas.

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

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

For 150 years one family has been producing the iconic hot sauce on a bayou island made of salt.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

In Paris, Texas they have their own Eiffel Tower, it just has a cowboy hat on it.

Horrifically creative torture devices and shame punishments line the walls of this chilling museum.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

The middle finger of modernity.

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.