This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

The ghostly remains of an accidental sea.

A hand-built folk art installation covered with messages of God's love.

A trash dump made beautiful by nature's power.

A huge musical instrument played by the ocean.

Massive still life just off the highway in Kansas.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

A stunning garden filled with fantastical environmental folk art and sculptures.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

Books you don’t need in a place you can’t find.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

Ice cream stand, snack bar, and time capsule of milk conveyance.

The massive machine creates cracking displays of indoor lightning.

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Not one, but two of Frank Lloyd Wright's architectural masterpieces nestled on the same street.

This location of a Mexican chain restaurant has a unique location: an old jail.

This small-town library was the first in the world to be entirely supported by taxation.