A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

It was once the base for a series of domestic terror attacks.

The "lovely red Vega" of the legendary record-settling pilot.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

This recently restored timepiece has stood all around Kansas City.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

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

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The first declared National Monument in the United States.

Hear the tales of New York's most notorious criminals.

The "Seinfeld" diner.

Comprehensive gaming collection of over 30,000 electronic games and consoles.

A faux European lane smack dab in downtown L.A.

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

The only depiction of Abraham Lincoln holding a weapon, and the names of all 9,000 Cuyahoga veterans of the Civil War.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

The origin of the Nixon tapes is rooted in technological incompetence as much as secrecy.

One of the largest crucifixes in the world stands 55 feet tall in a secluded, wooded area of northern Michigan.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

These pretty kitties killed and ate as many as 135 railway workers.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

A 30-foot stack of piano keys memorializes one of the greatest keys players in jazz history.

This unique collection collects pieces of art etched into thin pieces of stone.