I took this video at the National Gallery in Washington, D.C. It's not the best quality but you get the idea. It was really cool to walk through, especially emerging into I.M. Pei's East Wing Building, with a basement full of contemporary art, on the other side.
Last week I went to a workshop kinda thing at the new Lomography shop in Manhattan. There were loaner Diana+ cameras (though I had my own with me of course!) and free rolls of 120 film for all. We went walkabout in lower Manhattan and took some pictures, including experimenting with the Diana's pinhole setting, as in my picture above. More on my flickr. If you're interested in future events, you can get on the mailing list at the Lomography website.