SF is the only airport in the world that has a museum. Here are some images from an exhibit several years ago that include 20s fashions.
Beautiful - the right way to spend some time waiting around at an airport! Amsterdam Schiphol Airport has a museum too though - a mini-version of the Rijksmuseum with about 10 paintings. Hongkong airport has small displays talking about their manufacturing history... some old ads, vintage scarves and shoes. Very small though.
That museum in SF is some kind of commercial enterprise that has an agreement with the airport - it's not actually the airport itself. They contacted me about a shoe exhibition and hedged answering most of my questions about conservation, loan fees, etc. but when I finally got an answer it turned out they wanted to borrow the stuff for free! I declined.