This replica of the Greek structure is in the heart of Nashville.

Scattered around Atlanta are little doors with big charm.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

The uniquely-designed winter home and sculpture studio of Anna and Archer Huntington.

The language and heritage of a nearly forgotten culture can still be explored in this Southern enclave.

Every equinox this Maya pyramid puts on a spooky ancient light show.

There has been an astronomical clock on this spot since the 14th century.

Georgia's highest point was given its strange name thanks to a simple translation error.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

Tucked in the back of this amazing antique store is an important piece of medical history.

A notorious punk house turned co-op.

Elevated freight railway turned wildly successful urban park.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

Unique antiquarian shop specializing in globes, maps, and prints.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

A drawbridge named for a potentially intersex Polish national who fought alongside George Washington during the American Revolution, and an example of "Pulaski Red".

The only surviving sidewalk clock in Brooklyn.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

A decommissioned military complex that's now a modern industrial park.

Walk over a 150 year old manhole.

A veritable variety of odds and ends.

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