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Entrance to the Los Alamos History Museum
Inside the Harold Agnew Cold War Gallery in the Hans Bethe House
Los Alamos Ranch School gallery inside the Guest Cottage
Inside the Harold Agnew Cold War Gallery in the Hans Bethe House
Manhattan Project gallery inside the Guest Cottage
Inside the Harold Agnew Cold War Gallery in the Hans Bethe House
Outdoor signage at the Hans Bethe House
Los Alamos History Museum Shop
Los Alamos Ranch School gallery inside the Guest Cottage
Manhattan Project gallery inside the Guest Cottage
Los Alamos History Museum Historical Museum

The Los Alamos Historical Museum is a local preservation of the cultural, scientific and traditional history of the city and nearby areas. The museum is located at the Guest House and organizes lectures and even publishes books with topics related to the city’s history and surroundings of the Pajarito Plateau. Remains and excavated items from ancient settlements of the area are on display here. The area is known for the second largest caldera in the world called the Valles Calder and the information and records of it are open to the public here. One of the most popular display is the World War II exhibit and its effects on the people of this region.

Website: losalamoshistory.org

Phone: (505) 709-7794

Cross Streets: Near the intersection of Bathtub Row and Juniper St

Closed now

  • Sat 10:00 AM - 4:00 PM

1050 Bathtub Row Los Alamos, NM 87544 ·1491.25 mi

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Amenities

  • Family friendly
4.5
354 reviews
5 star
196 4 star
127 3 star
26 2 star
2 1 star
3
Tripadvisor traveler panpanda 09/30/26

We took a 2 hour walking tour that was fascinating. The tour guide showed us a replica of an old cabin that early homesteaders lived in. Many buildings were constructed by the Los Alamos Ranch School, who owned much of the property before the government took it over. There's a gorgeous lodge and other smaller buildings. We saw statues of famous general Leslie Groves and scientist Robert Oppenheimer. The museum itself is very interesting, too. There's currently an exhibit about all that women did in World War 2.

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Tripadvisor traveler Just_a_Rd_Warrior 08/10/26

The little museum itself was surprisingly packed with informative displays. We lucked out with timing to join the morning walking tour. The guide was very knowledgeable and provided lots of insights into life at Los Alamos. We found the tour so interesting that we picked up the walking tour brochure and retraced the route on our own. We especially wanted to spend more time at the Hans Bethe house; the gentleman on staff that day was an absolute delight.

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Tripadvisor traveler GlobeTrotting776799 06/30/26

We took the 'History of the Secret City' tour with Joan. Very interesting to tour the historic buildings and hear about the Hispanic farmers, the Ranch School and of course the Manhattan Project. Highly recommend this tour.

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Tripadvisor traveler Marcus D 03/25/26

Here you will get a sense of what this place was like before the Manhattan Project when it was primarily a Ranch School for wealthy kids. Rather isolated but with running water and electricity, its rural area and being away from almost everything--this was place to develop the nuclear bomb in secret. The ranch was started in 1907 but was taken over by the government in the early 40s for Project Y. And then take the self-guided tour to explore such things as bathtub row houses (considered to be a luxury--a bathtub), the remnant of an ancient pueblo site, the massive Fuller Lodge with over 700 cut beam timbers, the home of Robert and Kitty Oppenheimer and much much more. Suggestion: pick up the self-guide and wear comfortable shoes.

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Tripadvisor traveler tangojohnDallas 11/05/25

To me this was much better than I expected. While I found it all interesting, I enjoyed the history of the ranch before the Manhattan project. We really enjoyed the lady staffing the house next door to Oppenheimers house who shared more history and also explained things about the town of Los Alamos itself.

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