Largest tulip festival in America, includes fireworks, a parade, and a carnival.

A quaint miniatures museum that turns its focus towards the lives of Americans in a simpler time.

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.

This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.

The writing studio of an American adventure author, built in the style of a medieval castle.

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

An extravagant western hotel where every floor is the "ground floor."

This century-old roadside attraction is full of bizarre rock formations.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

An oil baron's wild paradise and the winner of an ill-fated air race.

A detached cement mixer has been transformed to resemble a relic from some obscure NASA mission to Oklahoma.

This historic folk art garden contains a nightmare tower that claims to be the world's largest concrete totem pole.

Nature's biggest mammal swims in landlocked Oklahoma.

A museum packed with instruments, lyrics, and other mementos of the American folk icon.

An acoustic anomaly with a mysterious cause.

A half-size replica of the World Trade Center towers above Tulsa.

One of the best examples of Art Deco architecture in the United States.

This abandoned, windowless concrete block is one of the strangest buildings in Tulsa.

Standing at 21-feet tall, this space cowboy adds to the legacy of Route 66's muffler men.

The collection is housed in an exquisite mansion that makes you feel like you've been transported to an Italian villa.

One of New York's most iconic authors is strangely honored by this Oklahoma park.