As the Dead Sea continues to deplete, massive sinkholes open along its banks.

Descend 2,030 years into the past in an ancient tunnel built to support Jerusalem's most famous wall.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

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

This saltwater swimming pool, which is the last of its kind in the United States, is slowly crumbling within sight of multiple high-end beachside hotels.

The last standing piece of a famous Honolulu landmark.

What remains of the summer palace of King Kamehameha III.

A 1940's shrine dedicated to drowned fishermen on the outskirts of Honolulu.

The grand marquee of this abandoned Hawaiian theater remembers the building's elegant past.

A unique set of caves that spits waves back out into the ocean.

During the solar phenomenon "Lahaina Noon" this bendy, curvy sculpture forms a perfectly circular shadow on the ground.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

This mom-and-pop Japanese sweets shop has been serving cloud-light mochi for almost a century.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

Twelve hundred stone carvings guard this off-the-beaten-path Buddhist temple.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

An artsy hidden staircase leads to breathtaking views of San Francisco.

Three hundred years of preserved Spanish colonial history in San Antonio.

The United States Capitol's former columns still stand.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

This square in downtown Eugene is dedicated to the novelist and countercultural figure Ken Kesey.

This former coal gasification plant found a curious second life as a popular public park.

A wall of chewing gum moonlights as collective art.