The American Drive-in Movie Theater by Carl Weese — Kickstarter:

The drive-in movie theater is an iconic feature of the American landscape, perhaps the ultimate vernacular architecture. At the peak in 1958 more than four thousand of them were scattered across every corner of North America. There was a great die-off in the 1970s, mainly because of rising property values. Theater owners have told me, “Nobody gets rich from a drive-in theater, unless they sell the land to Walmart.” 466 drive-ins were still operating last summer. The drive-in is also a uniquely North American institution—they are virtually unknown elsewhere.