Orchids are amazing. They're delicate and moody and make vanilla. They can be found wandering all over the world. There are over 20,000 species, and they really look like aliens. The Museum of Natural History in Washington, D.C. is currently hosting their "20th Annual Orchid Exhibition: Interlocking Science and Beauty" (until April 2015) so I had to go. One of the best things about D.C. is the constantly changing, world-class, free exhibits. It's difficult to take advantage of them all!