Cabinet magazine contains some fabulous, quirky stuff. A minor history of giant spheres by Joshua Foer has just been published in the Fall 2007 edition. The 'minor history' begins in 1664 with the world's first modern planetarium and ends with an ode to the Star Wars Death Star constructed in the United Arab Emirates.
The magazine itself is a joy. If you don't already read it regularly, you should treat yourself.
This from the New York World's Trade Fair in 1939. It contained a Utopian garden city of the future called "Democracity". Makes me feel quite melancholy.