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

Elevated freight railway turned wildly successful urban park.

Try not to get slimed in Tribeca.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The legendary building that needed ghostly approval before being built.

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

World's largest collection of serial killer artwork and other macabre exhibits.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A beach made of semi-precious green sand on the Big Island of Hawaiʻi.

Watch the newest land on the planet form before your eyes.

This black shoreline is made up of exploded lava particles.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

This Hawaiian cattle ranch acts as a museum devoted to the island cowboys that predate the wild west.