American bison herd descending directly from a Bronx Zoo breeding program that saved the species from extinction.

Final resting place of Geronimo, Quanah Parker, and the first atomic gun ever fired.

This little slice of old Jerusalem in Oklahoma is the evolution of a 90 year old passion play.

A town pays homage to its namesake.

World's smallest skyscraper, the product of a remarkable con.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

Once part of a dam servicing an early 19th century grist mill, the tucked-way falls are a tricky-to-find urban oasis.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

This free, take-a-book shop seems like a trick but isn't.

This lovely tree was a thank you gift from the man known as "Public Enemy No.1."

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

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

The oldest active church in Pennsylvania is also the second oldest Swedish Church in the United States.

The final resting place of one of the United States's greatest poets.

A completely round house designed for the Atomic Age.

How this Pine Barrens hill got its name is uncertain, but on a good day the view from the fire tower is crystal clear.

Hidden deep within New Jersey Pine Barrens is a massive graffiti wonderland.

One of the oldest surviving bars in the United States, located at the site of the last skirmish of the American Revolution.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.