The final resting place of the Seminole Indian chief who fought against government occupation in Florida.

The only free-standing, vertical sundial in the US was keeping standard time before it was even invented.

An old train trestle re-imagined as an Egyptian obelisk.

The oldest bridge in South Carolina may have been designed by the same man who created the Washington Monument.

This icon of the Atomic Age now lays dormant.

One of the U.S. Forest Service's only mansions is outfitted with a dinner table for floating food.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

Locals call this magical moss-covered walkway the "Emerald Path."

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.

This eccentric mansion museum holds a impressive collection of rare and automatic instruments.

A failed piece of Orientalism has become the proud symbol of a community.

Dr Barnes' $25 billion private collection of art and arboretum.

Huge masonic hall in Philadelphia with lavishly themed rooms.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

A rare view of a preserved Victorian science museum.

Enjoy classic musicals with a home-cooked meal at this former staple of American social life.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

A medical facility that has been kept frozen in time.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.

Berkeley Hot Springs presents to you "the only outdoor monument to presidential bathing."

The museum calls itself the "National Museum of the Paranormal" and is full of eerie oddities.