A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

A symbol of Texas pride.

This downtown Dallas art installation is always on the lookout.

A tribute to a great Texas blues musician.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

A pride of the state, this working museum crafts pottery mosaics in the style of Pennsylvania's earliest European settlers.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

These lush botanical gardens employ the most purrfect pest control force.

A secret, ethereal waterfall beneath the picturesque gardens.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

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

There aren't too many operational funiculars around, but Pittsburgh has two!

One of the few remaining covered bridges in Lancaster County.

A daily replay of the experiment that proved the rotation of the Earth.

This elaborate towering structure was once famed for its revolutionary height.

Dr Barnes' $25 billion private collection of art and arboretum.

Yo, Adrian!

A layered tribute to the work of mosaicist Isaiah Zagar.

A bronze sculpture in the heart of Portland represents Maine’s most defining industry.

Forrest Gump ran past this iconic Maine lighthouse in his cinematic cross-country journey.

The most photographed house in Maine looks good enough to eat.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

This bronze sculpture was inspired by a photograph of Martin Luther King Jr. and his wife embracing after he won the Nobel Peace Prize.