There's a secret door in the Smithsonian Castle
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YouTubeSmithsonian
There's a secret door in the Smithsonian Castle
Completed in 1855, the Castle was the Smithsonian’s first building. This summer, we’re temporarily pausing renovations to welcome visitors back for the first time since 2023. Through July 26, 2026, plan your visit to explore “American Aspirations,” a new special exhibition co-curated by Smithsonian Secretary Lonnie G. Bunch III. From ...
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