A six-story-tall golden pyramid, surrounded by a moat.

Tour the luxe "glass cage" that inspired and unnerved the architecture world upon its debut.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

Cemetery featuring rare glass-fronted columbarium.

Hot Doug's "Hot Dog" Stand.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

The original Garfield station is the oldest station facility on the "L", with the station house dating from 1892.

This modest post office sits on the site of H.H. Holmes' famous murder castle.

This old steel industry company town has a tradition of parking cars on the sidewalk so people can walk in the narrow streets.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

Home to a protest movement, a bombing, and a dramatic change in labor history.

Huge abstract sculptures of the Puerto Rican Flag.

Where Cusack's record store from the film "High Fidelity" was located.

Illegal drag racing two stories beneath Chicago’s streets.

One of only two commuter aerial tramways in the United States.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

Mysterious 500-year-old tapestries depict a unicorn hunt.

Visit the monolithic tomb of America's most famous general.

The "Seinfeld" diner.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.