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Smithsonian National Museum of Natural History
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Link to http://butterflies.si.edu/
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The museum is open every day of the year except December 25. Regular hours are 10:00 AM to 5:30 PM. However, the Museum will extend its hours until 7:30 PM on certain dates. These dates are recorded in the calendar below.

Note: When extended hours have been marked as CANCELED, we will be closing at our regular time of 5:30 PM due to a special event. We apologize for the inconvenience and thank you for your patience.

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