Location: National Postal Museum, Washington, DC, USA
Visited: June 2013
This is a cute little museum and a definite must-see for any lover of snail mail. It's kind of a pain in the butt for me to get to (as is anything on the red line of the Metro) but well worth visiting. I was there on a day when they had a stamp collecting kiosk, so I pasted the ones I picked out on this page.