Chicago’s incendiary role in the labor movement.

A 30-year-old Sycamore tree grown from a seed taken to the moon and back.

The longest navigable underground river in the United States is home to countless blind and albino animals.

The unique location where the former president was rapidly sworn in.

This strategically-placed fountain creates the magnificent illusion of mustangs galloping across a river.

The final resting place of an outlaw, whose legend grew after death.

Of course the grave of JFK's assassin is surrounded by conspiracy theories.

The final resting place of infamous outlaw Clyde and Marvin Barrow.

A modernist landscape of water and sci-fi concrete.

This small museum tells the story of Fort Worth's first and largest superstore.

The world's second-longest burning light bulb.

Belly up to the bar in Cowtown, don't forget to buy some boots.

A symbol of Texas pride.

A serene temple with stunning stained glass hides in downtown Dallas.

This downtown Dallas art installation is always on the lookout.

A small cemetery chapel designed by Frank Lloyd Wright and built in 1906.

This deceivingly ordinary warehouse hides an enormous collection of pop culture treasures.

More than 5,000 contemporary and "historic" mustards from around the world.

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

Moving, mind-blowing metal sculpture work of an outsider artist.

The grand marquee of this abandoned Hawaiian theater remembers the building's elegant past.

On Waikīkī Beach, a monument to four extraordinary individuals of dual male and female spirits who brought the healing arts from Tahiti to Hawai'i.

The young Black revolutionary was killed before getting to see a non-segregated pool in his hometown.

A plaque marks a former safe house on the secret route, now hidden next to a McDonald's.