The world's first aircraft factory has been hiding inside an automobile plant for almost 80 years.

The largest ancient burial mound in Ohio.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

This tower-tomb honors a president who only held office for a little over a month but dedicated his life to his country.

Where beautiful signs live on forever.

Astounding collection of coin-operated games and automata.

Where the Model T was made and the assembly line was invented.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

Toxic waste disaster that founded the Superfund program.

World's largest Christmas store.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

The only surviving prototype for Buckminster Fuller's house of the future.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.

Despite its name, this fast food museum is actually a replica of the ninth McDonald's store.

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

This replica of the Greek structure is in the heart of Nashville.

A bizarre roadside attraction and the first instance of miniature golf in the world.

The secret city built by the Manhattan Project.

Enormous lake at the bottom of a unique cave system.