This dilapidated castle-like structure overlooks the Hudson River at one of its widest points and was once home to nuns.

The first pet cemetery in the United States.

A beautiful, historic location open to the public.

An abandoned horticulture institute gloomily presides over rows of derelict and vine-wrought greenhouses.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

This fancifully decorated Victorian home in New York’s Hudson Valley is the only known fully domed octagonal residence in the United States.

This tiny church near Sleepy Hollow contains Henri Matisse's last work, a rose window, and nine windows by Marc Chagall.

One of the best beaches in the entire world.

A speakeasy takes on Chicago's drinking culture.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

An eerie, derelict amusement park in Berlin.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.