A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

This constitutionally sound Muffler Man harkens back to the days these attractions were a must-see.

This unusually circular centenarian barn became a Route 66 icon.

Along the historic Mother Road is an old gas station with a secret counterfeiting past.

Nature's biggest mammal swims in landlocked Oklahoma.

Standing at 21-feet tall, this space cowboy adds to the legacy of Route 66's muffler men.

Once in disrepair, this popular Texas stop along iconic Route 66 has been restored to its past glory.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

While he no longer has an eatery to give him context, this off-brand Paul Bunyan still holds his giant hot dog with pride.

Huge abstract sculptures of the Puerto Rican Flag.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

The original Garfield station is the oldest station facility on the "L", with the station house dating from 1892.

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

Illegal drag racing two stories beneath Chicago’s streets.

More than 2,000 species of tropical plants call this nature preserve and sanctuary home.

A controversial memorial at the place where Captain Cook met his violent end.

The southernmost point in the United States is a beautiful place to look at but a deadly place to wade in.

Get up close and personal with these majestic fish.

A beach made of semi-precious green sand on the Big Island of Hawai'i.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

This black shoreline is made up of exploded lava particles.

This church on a Tohono O'Odham reservation has stood since 1797.

A unique bridge with an equally unique view.

This small-town opera house has appeared much more in national culture and history than its charming setting might suggest.