The former estate of the Guggenheims, part of the opulent Gold Coast that inspired the Great Gatsby.

The abandoned grounds and derelict greenhouses of this once-magnificent Edwardian estate are now a nature preserve open for exploration.

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

A one-ton statue of Steve Rogers beautifies the entry to a Brooklyn Bed, Bath & Beyond.

Sniff the Titan Arum's rotting flesh.

A memorial to Chinese freedom in the city where American freedom was born.

This unassuming retro burger joint was billed as “diner of the future” at the 1939 World's Fair.