An overlooked and unassuming engineering marvel.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

The most beautiful Taco Bell in the world even has surfboard parking.

Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

This elaborate High Victorian Gothic structure is one of the world's few 16-sided buildings.

Opened in 1947, this is the oldest continuously-operating drive-in theater in New York.

A near tragic event on this bridge helped inspire the classic film "It's a Wonderful Life."

What remains of the simple red brick chapel where the women's rights movement began.

In 1847, Brigham Young climbed this hill to survey the Salt Lake Valley and saw a fine place to build a city.

Pyramid home to an obscure religious group that practices modern mummification.

Next to Salt Lake City's Assembly Hall stands a tribute to some unlikely heroes of early Mormon settlers.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

Eight whimsical acres of metal art.

Stay at this storybook estate, featuring Sir Henry Hudson Kitson's masterpiece "Gingerbread House."

Possibly the smallest church in the world floats in the middle of a pond.

A reversed traffic signal that was once violently misinterpreted as a statement on British-Irish relations.

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

This series of landscape dioramas tell the story of New England forestry in exacting miniature detail.

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.

The largest body of water in Massachusetts annihilated four small towns just to slake Boston's thirst.

More than 200 unconventional musical instruments that anyone can play.

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

The Teenage Mutant Ninja Turtles stop thieves at the site of a historic 1876 bank robbery.