This geodesic dome was built in 1964 to enclose the World's Fair Pavilion at the 1964-65 World's Fair. After Winston Churchill passed away in early 1965, the pavilion was transformed into the Churchill Center for the fair's 1965 season. Within a few years of the fair's closing, the dome was reassembled at another site within Flushing Meadows-Corona Park, where it has served as the Queens Zoo's aviary ever since the zoo opened in 1968. (You can see more photos of the aviary here, and you can check out an aerial view of the structure here.)