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

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

The Cold War-era "underground Pentagon" is a sprawling subterranean hideaway for the Defense Department.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

The Home and murder site of the witch of Rehmeyers Hollow.

An outlandish shoe shaped house built by an eccentric millionaire.

Could it have picked a better place to land?

"Where the ducks walk on fish."

This collection honors the iconic, and proudly American lighter that just won't quit.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

A labor of love built by local hang-gliding enthusiasts, this ideal launch spot was outlawed by the authorities and has since been largely abandoned.

The Dover International Speedway is home to a towering, concrete-skinned, racecar-hungry behemoth.

World War II-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers.

Twenty-eight years after this local landmark was washed ashore by hurricane Hugo, it was washed away by hurricane Irma.

This recently rediscovered Civil War-era submarine was the first to ever sink an enemy ship.

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

One of the oldest living oak trees in the Southeast.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.