This small Key West museum is packed with dozens of artifacts that illustrate the life of the iconic playwright.

The ruins of an abandoned church mingle with the graves at Oaxaca’s General Cemetery.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

Home to a protest movement, a bombing, and a dramatic change in labor history.

Chicago’s incendiary role in the labor movement.

This unassuming city park is home to three different types of Native American mounds.

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

One of the largest pieces of scientific equipment ever carried on a NASA space shuttle sits in a Chicago alley.

A Japanese temple, old German townhouses, and public chess tables offer a peaceful escape from the bustle of the North Side.

One man's grief over the national tragedy has manifested in a pod of homemade whales on his front lawn.

Take a break from all the boring business of death at this funeral home mini-golf course.

Healing Springs that once ran red with soldiers' blood.

This hidden stone has absorbed decades of human anxiety.

Like Mars, but much closer.

A giant 400-acre preserve in North Florida for displaced wolves.

The ruins of a Florida miracle spring resort make it seem like a wonder that this was ever a health spa.

Could this grave be the true resting place of legendary gunfighter "Doc" Holliday? Unclear.

Wading through a small lagoon reveals a secret, wild stretch of pristine beach.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

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

One-of-a-kind preserved ruins of an abandoned 1880s church in Chicago's Pilsen neighborhood.

These abandoned grain silos and tunnels are an urban exploration dream.

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

No one knows how many bodies are in this vault in a Chicago public park.