Los Alamos History Museum


The Los Alamos Historical Society manages the Los Alamos History Museum in the heart of downtown Los Alamos.

Built as an infirmary in 1918 and later used as the guest cottage for Los Alamos Ranch School, the museum is in the oldest continually occupied structure in town. During the Manhattan Project (1943 to 1947), the cottage continued to serve as guest quarters, notably for General Leslie R. Groves, commander of the Manhattan Engineer District, whose office and residence were in Washington, D.C.

Now it serves as an award-winning, comprehensive history museum. A book and gift shop also fill a former bedroom. Visiting the self-guided museum can take up to 45 minutes – depending on the level of detail you are interested in.

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Walking Tours of Los Alamos

Guided history walking tours are available Monday – Friday at 11 a.m. in the Winter. The tour includes a visit inside the homestead-era Romero cabin, information on a nearby Ancestral Pueblo site, stories about the giants of 20th century physics, and how Bathtub Row got its name. The walking espionage tour about spies in the area only runs seasonally.

Starting April 1, History Museum walking tours will change to the following times:

History of the Secret City:

Monday - Friday: 10 a.m. and 1:30 p.m.
Saturday: 11 a.m.

Espionage in the Secret City:
Monday, Tuesday, Thursday, and Friday 12 - 1 p.m.

Tickets for tours are $25 for anyone over 18 years old, and people under 18 are free with a paid adult. Reservations and prepaying are suggested due to tour popularity.

Don't need a guide for the history tour? Pick up a brochure in one of our kiosks around town or download a copy now.