It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

Once a bustling cotton factory, this early 20th-century building is now home to a thriving artspace.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

San Francisco's newly reopened hands-on science museum.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

Known as the “Official Greeter of Juneau,” this dog still welcomes ships and their passengers to Alaska.

The ruins of this Alaska gold mine form a gorgeous ghost town.

The first Russian Orthodox church in North America and an Alaskan landmark.

During the summer, surfers in Alaska take advantage of this inlet’s unusual water patterns.

The unusual patterns in this rock formation result from two distinct modes of weathering.

A tunnel with windows, so you don't miss out on the impressive views.

An ornate Art Deco tile mosaic representing Nebraskan life, both modern and prehistoric.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

Quite simply the largest tree in the world (by volume).

Four hundred granite steps were built into this massive rock by the National Park Service.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

Its collection contains relics from the devastating disaster that set the town ablaze.

The second largest roadrunner in the world stands 11 feet tall in his West Texas town.

You don't have to be a diplomat to visit the so-called Camp David of the West.

A giant desert bird that once swung music fans at Coachella now has a home in a nearby traffic circle.