This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.

Memorial built in 1922 in remembrance of WWI casualties.

This once-booming Gold Rush town is now home to a herd of feral donkeys.

A "house to which to flee" for settlers in colonial Pennsylvania.

A fascinating community art piece created by students, teachers, and noted Philadelphia artist Isaiah Zagar.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

This enormous fiberglass cow near Death Valley National Park once graced a casino roof in Las Vegas.

This mostly abandoned shopping outlet is now adorned with beautiful graffiti and murals.

The so-called "Father of Las Vegas" had the city's first telephone installed in his office in 1907.

A homage to the King at the hotel where he revived his career.

An overlooked monument to the celebrity gangster who helped put the sin in Sin City.

An old railroad grade built for the construction of Hoover Dam is now a recreational trail featuring several tunnels and sweeping views of Lake Mead.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

Of all the unique artifacts inside this library, a mummified hand stands out among the others.

The largest Walmart Supercenter in the United States, referred to affectionately as “Mallmart,” has served the residents of Albany, New York, since 1994.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

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

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

An American industrialist hoped this nature preserve could help save the North American bison.

Since the 1930s, this Pennsylvania town has celebrated the humble tomato.

A humble plaque marks the site where the country music legend was found dead in his Cadillac.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.