On Saturday I took the subway to the National Postal Museum. It's in a beautiful tall, stone building, but I didn't really take photos because there was no natural light. The current exhibit shows artifacts and mail from the Hindenburg and the Titanic.
The NPS puts on an event called "Build a Topical Stamp Collection" where you get to dig through plastic tubs of donated stamps and pick out six to take home. It was amazingly fun to see and hold all the tiny art from the whole past century and all over the world. Casey doesn't care for collecting things but he actually enjoyed it because he loves nations and the world. Still, he only found four stamps that he wanted so I got to pick two extra.