This 150-year-old train station and caboose have been turned into a railroad museum, enjoyed by young and old alike.

Thomas Edison's home and final resting place also boasts an impressive garage, where some of the earliest electric cars are on display.

This beautiful stone arch bridge wasn't even expected to stand for one day, but people have been crossing it for centuries.

Pennsylvania's highest point is spotted with boulders which were pushed to the surface by nothing but cold.

This original Mason-Dixon line cairn placed in the 1760s was put in the wrong location because of the gravitational pull of the Allegheny Mountains.

This historic furnace was once used to produce cannonballs during the Civil War.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

A private residence adorned with a gorgeous mural dedicated to the buzzing insect.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

This natural rock formation has an anatomical aesthetic.

A pair of 19th-century granite markers symbolically record where the state boundaries of New York, New Jersey, and Pennsylvania intersect.

Water still flows through the oldest Spanish aqueduct in America.

Visitors can walk over the largest concentration of Columbian mammoths to have died from one event.

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

A gorgeous garden oasis with winding paths, stone bridges, and a troubling history.

A tall smoke stack and boarded-up buildings are all that's left of the pioneering plant.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

Now abandoned, this East Austin school for the disabled began as the "State Colony for the Feeble-minded."

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

A modernist landscape of water and sci-fi concrete.

In which a local geological marvel becomes a quaint roadside attraction.

The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

After traveling the world, one of the last remaining fully-rigged three masted iron-hulled cargo ship in the world found its home in New York.