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Smithsonian Castle Commons

Smithsonian Office of Special Events and Protocol
Phone: 202-633-2020
Fax: 202-633-2023
Email: smithsonianevents@si.edu

Mailing Address
1100 Independence Avenue, SW
Suite 3160, MRC 713
PO Box 37012
Washington, DC 20013-7012

Office Location
1100 Jefferson Drive, SW
Suite 3160, MRC 713
Washington, DC 20560

Smithsonian Castle Location
1000 Jefferson Drive, SW Washington, DC 20560