This NASA test station is home to some of the world’s largest and most powerful space environment simulation facilities.

The childhood home of one of Ohio's favorite sons, pilot and war hero Eddie Rickenbacker.

The angel of death appears to weep black tears at this grave marker.

If astronomy had a ghost, it would look like this observatory.

This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

One of the largest trees of its kind in California.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The land is home to swimming ponies and a legendary 18th-century treasure.

This magnificent Cincinnati graveyard is also a popular public park.

The world's longest known cave system.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

See massive fossils that are over 200 million years old in northeastern Arizona.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Famously misunderstood wonder of the ancient world

Prehistoric animals decorate this popular outdoor park.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The fairy tale castle of the "fairy-tale king."

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

A mocking tribute to the past and modern leadership of Prague.