I nternational Museum Day is recognized and celebrated worldwide May 18 with 30,000 museums organizing activities around the holiday, according to the International Council of Museums.
The holiday , established in 1977, promotes the message that “Museums are an important means of cultural exchange, enrichment of cultures and development of mutual understanding, cooperation and peace among peoples.”
In honor of the holiday, TIME rounded up eight unique American museums to check out this year, from a collection housed in a New York Guilded Age mansion, to a museum dedicated to the craft of espionage.
The Frick Collection, New York
Industrialist Henry Clay Frick willed his Gilded Age mansion and its contents—art, furniture and decoration— to the public. The permanent collection, many arranged to Frick's design, contains master paintings while temporary exhibitions rotate alongside.Nicholas Hunt—Getty Images Museum of Jurassic Technology, Los Angeles
The museum describes itself as " is an educational institution dedicated to the advancement of knowledge and the public appreciation of the Lower Jurassic." The museum displays exhibits of curiosities, referencing roots in the early days of natural history museums. The Museum of Jurassic Technology Mütter Museum, Philadelphia
This museum of medical history says it "helps the public understand the mysteries and beauty of the human body and to appreciate the history of diagnosis and treatment of disease," displaying its objects in a cabinet setting.Rusty Kennedy—AP Intuit: The Center for Intuitive and Outsider Art, Chicago
Intuit is a nonprofit "dedicated to presenting outsider art" by artists who are "motivated by their unique personal visions." The Henry Darger Room, seen here, is a permanent exhibition.Charles Rex Arbogast—AP The Kreeger Museum, Washington
Residing on rests five acres of gardens filled with sculptures, this nonprofit museum focuses on 19th and 20th century paintings. Surrounded by woods, the museum is uniquely tranquil.The Kreeger Museum, Washington, D.C. International Spy Museum, Washington
A woodblock transmitter. top, and shoe with heel transmitter were on display at the Spy Museum. The museum says it "features the largest collection of international espionage artifacts ever placed on public display."Susan Walsh—AP Mmuseumm 1, New York
This museum, housed in a former elevator shaft, is "a museum about the world we live in," currently housing 15 exhibitions looking at social issues, culture, and current events around the world.
Mmuseumm Bayou Bend Collection and Gardens, Houston
The 14-acre facility of the Museum of Fine Arts is the former home of a Houston philanthropist. The collection is "one of the finest showcases of American furnishings, silver, ceramics, and paintings in the world," according to the museum.
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