The same security that protects our nukes accidentally protected a gentle herd of antelope.

On the edge of grassland in northeastern Colorado, these rock formations are some of the few remnants of a high plain that has eroded away over millions of years.

The location where the iconic movie character declared it was time to go home.

Inside this striking glass building, visitors can see thousands of dinosaur fossils in the positions that nature deposited them more than 150 million years ago.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.

This presidential tomb was not dedicated until years after Harding's death due to personal controversy.

A throwback train ride transports passengers through one of the lesser-known national parks in the country.

For decades, this waterfall remained hidden because of an artificial dam.

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

This stately clubhouse has showcased German-American culture for over a century.

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

The palatial McDonald's that inspired Wesley Willis.

Hidden on the 7th floor of a historic building, this Cajun spot features wall-to-wall bottles of hot sauce.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

Landmark Chicago building narrowly avoided destruction.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

No one knows how many bodies are in this vault in a Chicago public park.