rfreudenheim wrote:
The prohibition against tripods extends to everywhere on the National Mall, not just the Capitol grounds. You can get a permit to use one if you like. To do so, Google it. There is a lot of info on the topic. If you want to shoot from a tripod inside the Botanical Garden you can ask permission, and if it it not too crowded, they will often OK you have to shoot with one. The main reading room at the Library of Congress permits photography on The Columbus Day holiday. Call ahead for details.