I too live in Virginia. In Manassas actually, I didn't know so many people close to me grow orchids.
Al's Orchid Greenhouse in Leesburg, VA is another great place to visit. I'm not sure how far from MD you are, but there is a greenhouse names the Little greenhouse in Parkville, MD that is amazing as well. The owners are very nice and have a great collection.
I can also vouch that Floradise is a great place to visit. Steve and Janet are always so nice to me.