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

"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."

Historic Hull Street was actually the first street with a proper name in the Boston area.

"X" marks the spot of an echo chamber in the middle of a plaza.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

A monument celebrating the idea of reaching inaccessible places.

"We Seceded Where Others Failed."

Ruins of a Carnegie family mansion on Cumberland Island.

A bizarre roadside attraction and the first instance of miniature golf in the world.

Mile-long cave system near Great Smoky Mountains.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

A living time capsule of the 1960s Richardson Bay water-front.

Relics of Australia's convict past, and a modern scene of unimaginable horror.

One of the best beaches in the entire world.

One of Australia's largest secondhand bookstores.

Come for the flowers, stay for the bats!

Berkeley Hot Springs presents to you "the only outdoor monument to presidential bathing."

The center of the only hemisphere that awards visitors with a commemorative coin.

Almost half-way between the Equator and North Pole.

A hollow cement depiction of time's inexorable effect on the human body.

Recovered from the brink of extinction, at home in the Financial District.