This legendary urban waterfall creates a dazzling display of rainbows.

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

Babe Ruth and others planted saplings for a 1930s tourism campaign. The saplings grew as the area faded.

More than 2,000 species of tropical plants call this nature preserve and sanctuary home.

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

A model of a galactic embassy is hidden in plain sight along the highway, proposed by a UFO religion to find the aliens that created life on Earth.

This black shoreline is made up of exploded lava particles.

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

The remains of a royal fish pond are now a brackish-water wildlife sanctuary

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.

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

This South Carolina water tower is an icon of the city of Walterboro, but it also once served as the county jail.

Despite being burnt down multiple times, the ruins of this South Carolina church are still standing.

Dubbed the "smallest church in America," this tiny sanctuary was a local grocer's dream come true.

This stretch of highway is said to be haunted by ghosts of settlers whose graves were paved over.

Electrical pylon in the shape of Disney's beloved mouse.

The once-abandoned 140-year-old hotel used in the movie "In Dreams."

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

New Hampshire's first neighborhood is now preserved as a historic village with live action role players.

The 92-foot-tall structure is based on the aircraft that carried the first Americans into space.

This architectural onion has an original 1930's Jerry O'Mahony dining car at its core.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

This Art Deco theater is the last remaining opera house in the “little Broadway of the North.”

This 1.5 million-gallon water tower inspired Stephen King while he was writing "It."