The upstairs reading room is packed with millions of rare books, literary manuscripts, and historical treasures.

A "Texanic" (gigantic Texas) collection of Art Deco architecture at Dallas' historic Fair Park.

This recently restored timepiece has stood all around Kansas City.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

A tribute to the "toughest woman on the Texas frontier," who survived a famous battle and five husbands.

The peaceful space is adorned by paintings by the famed abstract artist Mark Rothko.

European castle ruins in an American state park are actually the product of death and grief.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

A larger-than-life monument to the overlooked women who braved Western expansion and broke down societal barriers.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.

Where hills of dirt conceal the burial ground of one of the most powerful ancient Native American societies.

The fifth tallest statue in the United States is a shirtless monument to the oil worker.

This traditional garden in the San Fernando Valley doubled for Star Fleet Academy, and is irrigated entirely by wastewater.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

This museum holds not just a world class collection of firefighting artifacts and gear but even the region's first fire station itself.

Celebrate the history of the rich and truly misunderstood relationship between man and pigeon.

Sitting in the arguable birthplace of the Wild West, this museum holds the largest collection of bronco busting bric-a-brac in the world.

A mysterious light of unknown origin on the backroads of Missouri.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

An acoustic anomaly with a mysterious cause.