[2] In March 2016, the museum closed for a major expansion and renovation designed by Tod Williams Billie Tsien Architects.

[3] The museum reopened to the public on January 26, 2019, with more gallery and office spaces as well as a welcoming new atrium.

[4] It also added the Bernstein Center for Object Study, which houses three smart object-study rooms, an object-staging room, and curatorial and security offices, all accessible to Dartmouth faculty and students via an entrance set parallel to the doors to the galleries themselves.

[10] The Hood Museum's collection is drawn from a wide range of cultures and historical periods.

[18] Among the museum's most important holdings are six Assyrian stone reliefs from the palace of Ashurnasirpal II (about 900 BCE),[19] the complete archive of photojournalist James Nachtwey,[20] and the fresco by José Clemente Orozco titled The Epic of American Civilization (1932–34), which was designated a National Historic Landmark in 2013,[21] located nearby in Dartmouth's Baker-Berry Library.