The largest single-building tribal cultural center in the U.S. is an expansive museum in Oklahoma City.

This historic house museum that celebrates one of the world's most influential social reformers is also one of the most haunted locations in Chicago.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A monument celebrating the idea of reaching inaccessible places.

Songwriter Leon Russell transformed this church into a recording studio used by many legendary musicians.

This little slice of old Jerusalem in Oklahoma is the evolution of a 90 year old passion play.

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

American bison herd descending directly from a Bronx Zoo breeding program that saved the species from extinction.

Only a few pieces remain of the structure that carried people and goods across the Thames for some 600 years.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The beloved home to all publications indie, erotic, and punky.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

A whimsical tower with a spiral staircase, inspired by the Space Age and the Möbius strip.

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

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

Once in disrepair, the house where the 1983 film was shot has been restored and turned into a museum.

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

These massive mitts are made of 30 tons of devotional bronze.

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

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

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

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

This monolithic statue was erected in honor of Chief Black Hawk (even if it wasn't made to look like him).

It was originally part of a "terrible lizards" collection at the 1964 New York World’s Fair.