The world’s largest combined collection of U.S. and Russian aircraft got its start in a poultry building.

This peaceful gem in upstate New York was chosen as the future home of the 14th Dalai Lama's Library and Museum.

This massive melon is a recreation of a similar gate from the Pan-American Expo.

This unique crypt designed by Frank Lloyd Wright for his longtime friend was not completed in either man's lifetime.

A beautifully designed asylum was resurrected as a hotel and art center with a ghost story or two.

An abandoned subway tunnel that could have reinvigorated Staten Island still lies somewhere beneath this Brooklyn park.

The abandoned ruins of America's first private zoo are open for exploration in the Catskills.

A forgotten relic from New York's bygone trolley system hides in plain sight under a bridge.