This giant Massachusetts sycamore is said to hold the dubious distinction of being the "widest tree East of the Mississippi!"

The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

Time has expired for eternity at this gravesite with a sense of humor.

Dedicated in 1895, this is the world's first tribute to the hardworking newspaper delivery boy.

A rich collection honors the iconic American artist, down to the jacket worn in his “Freedom of Speech” painting.

Designed as a place for patients to take in the scenery, this tower has a dark history.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

You can get anything you want at the former site of the restaurant immortalized by Arlo Guthrie.

A rock and sand industrial site returns to its natural habitat.

Money may not grow on trees, but it can be dispensed by one.

Found: Garden of Eden in Miami-Dade County, Florida.

Only through the lens of a microscope can visitors see the true treasures inside this museum.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

The first keystone arch railroad bridges constructed in America.

The ruins of a once-thriving sugarcane plantation that was burned in the Second Seminole War.

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

European castle ruins in an American state park are actually the product of death and grief.

This 40-foot fowl marks the so-called "wild goose capital of the world."

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

The site of the first daylight, peacetime bank robbery by the James gang.

Walk in the footsteps of the gods and straddle two tectonic plates.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

What was once believed to be a church floor turned out to be the artwork of geology.