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Photo: ajay_suresh, CC BY 2.0 via Wikimedia Commons
Large, established center-left think tank with a broad focus.
The Brookings Institution, often stylized as Brookings, is an American think tank in Washington, D.C. The institution conducts research and education in the social sciences, primarily in economics and tax policy, metropolitan policy, governance, foreign policy, global economy, and economic development.
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Small theatre offering new and classic plays and musicals.
Competing with the Smithsonian for top castle status in the District is the Victorian mansion of Christian Heurich, who immigrated to the states from Germany to become a wildly successful real estate baron and brewer. He also holds the title of world's oldest brewer, having kept up his work until his death at a ripe age of 102. It's a striking example of Victorian architecture and design, and even if you don't make it to a tour, there's a nice Victorian garden in the back open to the public M-F 10AM-4PM, spring-fall.
Establishment think tank with focus on foreign policy security issues.
Small museum with exhibits depicting the contributions made by American Jews in the United States military. Includes artifacts (e.g. medals) and several videos.