This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

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

Strange red rock formations that have been attributed to a higher power for hundreds of years.

A modernist landscape of water and sci-fi concrete.

The largest self-built castle in the U.S., six decades in the making.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

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

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Try not to get slimed in Tribeca.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

A terrific purveyor of natural history objects and curios.

The life of one of FDR's possible mistresses is preserved in her palatial Hudson Valley mansion.

Now the final resting place of prominent artists and musicians, it was originally founded to separate the rich from the poor in death.