In yet another gem from Modern Mechanix, folks from 1932 ponder "How Much Longer Will Our Big Cities Last?" Photos of subway tunnels collapsing and apartment fires in New York set the apocalyptic tone for the piece which claims "scientific prophets" see the mammoth cities becoming obsolete. We're to pictured a cobweb-enshrouded Empire State Building and dandelions overtaking Wall Street after "exhaustive studies" concluded that we're pretty much, well, screwed.According to such writers as......