New York's World's Fairgrounds

Constructed for the 1964-65 New York World’s Fair (the largest ever hosted in the United States) by architect Philip Johnson, for decades, the grand structures of The New York State Pavilion have stood vacant. While the rest of the fair has slowly been demolished, the three concrete saucer-shaped observation towers and open-air arena—nicknamed “The Tent of Tomorrow”—have remained untouched. Plans are now in the works to renovate the site into a sustainable community hub (think eco-conscious suspended greenery and playgrounds), but before that, head over to glimpse this golden era of New York architecture and technology. For a complete historical rundown, tickets for a self guided audio tour are available online.