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

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

Elvis's own personal tropical hideaway.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

A fitting attraction for the corn capital of the world.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

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.

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

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

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

10,000 flowered plants bloom in the City of Roses.

Portlandia is the second-largest copper repoussé statue in the United States.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

A massive sea stack famous for its appearance in The Goonies.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

A living antique aviation museum in the historic town of Red Hook, New York.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.

The Hudson River School comes alive at this palatial estate.

"A hideous albatross in the Hudson River Valley."