Home of Jake the Alligator Man, the mummified remains of a cigar smoking, cross-dressing celebrity of the Northwestern coast.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Exact replica of the ancient monument, but much, much lighter.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

Free public park and gardens filled with peacocks and peahens.

Austin’s local mountain isn’t really a mountain at all.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

Home to Hollywood history and a very special salt crystal.

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

At this former Prohibition speakeasy, electric birds signaled the arrival of hooch.

Public opinion is still divided on this enormous sculpture in front of Baltimore's Penn Station.

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

A museum dedicated to exhibiting remarkable outsider art.

World's first "penitentiary," meant to be humane, drove men insane.

The world's largest piece of copyrighted artwork.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

Civil War-era Fort designed to withstand invasion and attack, with tricky traps called "murder holes."

Civil War Fort on an island in the Boston Harbor.

The last remaining attraction from Paragon Park.

The world's largest collection of historic U.S. military naval vessels.

One of the most scenic falls in Massachusetts has a history of death and grim legend.