The rolling hills and narrow valleys of East Tennessee proved to be the ideal location for the top-secret atomic weapons program developed here beginning in 1942. Oak Ridge, Tennessee was home to several massive Manhattan Project facilities employing thousands of workers during and after World War II and was the headquarters for the project after relocating from New York City. These facilities in Oak Ridge operated with one goal in mind—enriching uranium for use in the world’s first atomic bomb.
Today the city is home to a wealth of historic sites that tell the remarkable story of the Manhattan Project and the dawn of the atomic age. Drop by our visitor to speak with park rangers, stamp your passport book, pick up a junior ranger book, and learn about ranger programs. Then use our park app to discover places in Oak Ridge related to the Manhattan Project.
Closures & Seasonal Exceptions
We offer a traditional passport stamp as well as a unique three-part stamp. Travel to our visitor centers in Los Alamos, Oak Ridge, and the Tri-Cities to receive one-third of a stamp. When all three pieces are put together, they make a whole stamp.
Oak Ridge Visitor Center: While the Manhattan Project Visitor Center at Oak Ridge does not charge admission, it is located within the Children's Museum of Oak Ridge. For a fee, you may also explore the Children’s Museum of Oak Ridge, where you will find many exhibits on science, the environment, and Manhattan Project history.
Park calendar: Visit our park calendar to learn about ranger programs and special events at each of the park's locations: Los Alamos, New Mexico, Oak Ridge, Tennessee, and the Tri-Cities, Washington.
Oak Ridge Places to Go: Visit the Oak Ridge Places to Go page to see all the places related to the Manhattan Project that you can explore. This includes our visitor center, historic facilities with the Department of Energy and historic sites and educational centers throughout Oak Ridge.
Oak Ridge Things to Do: Visit the Oak Ridge Things to Do page to see all the activities related to the Manhattan Project. This includes guided tours, self-guided tours and programs and activities with our park, the Department of Energy, and organizations within the Oak Ridge area.
Self-guided Tours with our App: Download the National Park Service mobile app and go to the Manhattan Project National Historical Park. There you will find information about all the places you can visit as well as information on self-guided tours.
Junior Ranger Program: Our Junior Ranger book is available in-person at our visitor center or on our website. Kids of all ages can complete the book's activities and earn a Junior Ranger certificate, badge, and patch.
Many of the park’s historic properties are located “behind the fence” on secure Department of Energy facilities. Public access is only permitted though public tours facilitated by the Department of Energy.
Department of Energy Guided Tours: The Department of Energy’s guided tours of Manhattan Project sites in Oak Ridge are wheelchair accessible. Requests for wheelchair access must be made two days in advance. For more information on wheelchair accessibility on guided tours, please visit the American Museum of Science & Energy’s bus tour page or call 865-294-4517.
Outside Safety: For your safety and comfort, visitors are encouraged to bring water, sunscreen, insect repellent, and appropriate footwear to all outdoor programs.
Bicycling: For Bike With a Ranger, Tennessee state law requires that bicycle operators under 16 years of age must wear a helmet and child passengers under 40 pounds or 40 inches must be seated and secured in a child restraining seat or bicycle trailer.
Kayaking: For Paddle With a Ranger, all participants must wear a life jacket or other approved personal floatation device.
Traffic: Oak Ridge is a small yet vibrant community. Traffic can be heavy at times. Please drive carefully and obey all traffic laws during your visit.
Weather: Check the weather and forecast of Oak Ridge before you set out for the day.
The Children’s Museum of Oak Ridge, of which the Manhattan Project Visitor Center at Oak Ridge is a part, as well as guided tours of Manhattan Project facilities in Oak Ridge, allow licensed service animals only. If you are planning to explore areas of the park that are closed to pets, we recommend that you contact a local pet care provider. Commercial kennels and pet sitters are available in surrounding communities. Please check local listings. Reservations are strongly advised and may be required.
WiFi service is currently not available. However, cellular service is excellent throughout Oak Ridge.