The graves in Florida's oldest Black cemeteries are marked with shells, stones, and mementos of the deceased.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

The final resting place of the most famous outlaw in the Old West.

A small side chapel in Santa Fe's basilica is home to the oldest statute of the Virgin Mary in North America.

Adobe ruins punctuate the beauty of an 800 foot canyon carved by the Canadian River.

A clear blue swimming hole with hidden caves, still unexplored.

World's smallest skyscraper, the product of a remarkable con.

Legend says the horned lizard spent 31 years sealed in a time capsule before he was discovered alive.

The first full-scale tunnel built in America is short but scenic.

Just like the real 36th president of the United States, animatronic LBJ amuses visitors with jokes and stories.

Free public park and gardens filled with peacocks and peahens.

This house proudly displays an interactive and continuously changing exhibit of lawn flamingos.

An acoustic anomaly with a mysterious cause sits in the heart of Tulsa.

Thousands of small machines line the shelves of this personal collection which definitely delivers on its name.

Dad jokes and wordplay abound in this comic fake cemetery.

This unusually circular centenarian barn became a Route 66 icon.

Collection of skeletal systems from the "world's leading supplier of osteological specimens."

A peculiar forest that was handcrafted for government experiments.

The "world’s largest honky-tonk" also has its own indoor rodeo arena.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

This historic patch of real estate offers a glimpse of colonial Boston.

A mysterious stone embedded at the base of a historic Boston building.

The location of one of the first private Catholic schools in the country, providing a valuable sanctuary during the tumultuous period when Protestant and Catholic students were at odds.

A school used as a model for public education across the country.