These powerful, if squat, Canadian waterfalls flow in different directions depending on the time of day.

The only one of New Hampshire's original 14 World War II watchtowers to survive in near-original condition.

A treasure trove of rare and fine fabrics from around the world.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

This World's Fair showpiece was built in Chicago, but shipped to Maine.

Even Henry David Thoreau found this glacial pothole irresistible.

Rock face that shares a name with Mary Shelley's famous doctor.

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

Race through the maze, get your name on the sign.

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

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

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

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

This black shoreline is made up of exploded lava particles.

The southernmost point in the United States is a beautiful place to look at but a deadly place to wade in.

A beach made of semi-precious green sand on the Big Island of Hawai'i.

A controversial memorial at the place where Captain Cook met his violent end.

A 30-year-old Sycamore tree grown from a seed taken to the moon and back.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

Mountain known by the Tillamook Tribe as "the place of the supreme deity."

A massive sea stack famous for its appearance in The Goonies.

A logging-themed roadside restaurant surrounded by museum-quality machinery and artifacts from the industry's heyday.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.