Learn about the last river many crossed to find freedom from slavery in the United States.

Quite possibly the last cross all humans will ever see.

A multiversal transit station located right below a highway interchange.

The huge collection of paintings of the American West is one of Denver's best-kept secrets.

This museum offers an actual time machine back through Colorado's past.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

The Corinthian columns that towered over Abraham Lincoln’s inauguration stand proud.

This friendly fellow was built to honor an advancement in mineral processing.

Designed by Alfred Caldwel, this landscape showcases his vision of a native garden.

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.

A one-armed veteran of the Battle of Waterloo lies in a cemetery for one in the middle of a Chicago scrapyard.

An actual 1957 Cadillac De Ville, encased in 15 cubic yards of concrete.

In a quiet north Chicago neighborhood rests a stunning relic of the golden age of earthenware design.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

A hot dog stand where the heads are just as hot as the dogs.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

This secret gem of a toy store houses a rideable carousel populated with fantasy animals.

Preserving the remains of Native American cultures which otherwise would have been submerged behind Hoover Dam.

Experience a charming 1930s version of "infotainment."

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

Temporary Burning Man sculpture made of two 18-wheelers.

The best Tiki bar in Las Vegas.