I visited the U.S. Botanical Gardens this past weekend. The Gardens are adjacent to the U.S Capitol and is a great place to go. Best of all, it has no admission costs.
There is a room of orchids. I spent most of my time there taking photos. Here is one of the photos I took.
I decided to experiment with the photo above and added some texture to the background in Photoshop. It gives the same photo a very different look.