History & Science

Tri-Cities science vacations offer amazing attractions for families — don’t be surprised if you learn a little something along the way.

Tri-Cities science vacations offer amazing attractions for families — don’t be surprised if you learn a little something along the way. View our STEM Itineraries in the Tri-Cities or Kidding Around with STEM Itineraries in the Tri-Cities.

Manhattan Project National Historical Park

If science, secrecy, and history intrigue you, then a visit to the Manhattan Project National Historical Park (MPNHP) should be on your bucket list.

The MPNHP preserves and interprets the nationally significant historic sites, stories, and legacies associated with the top-secret race to develop an atomic weapon during World War II.

MPNHP is the only national park managed in partnership by the Department of Energy and the National Park Service and includes locations in each of the three secret cities created for the Manhattan Project: Hanford, Washington; Los Alamos, New Mexico; and Oak Ridge, Tennessee. Together, these three sites share the complex story of one of the most profound historical events of the 20th century.

In the Tri-Cities, the Hanford site of the MPNHP includes the B Reactor National Historic Landmark, the first full scale plutonium production reactor in the world.

The Hanford site also includes the pre-war Hanford High School, Bruggemann’s Agricultural Warehouse, White Bluffs Bank, and Hanford Irrigation District Pump House, which together provide perspective on the sacrifices made for the Manhattan Project.

CPCCo Planetarium

2600 N. 20th Ave., Pasco, Washington 99301 Planetarium, D-Building

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