Integratron, Dome structure in Landers, United States.

The Integratron is a white cupola structure in Landers, California, 38 feet (12 m) tall with a diameter of 55 feet (17 m). A cylindrical lower section carries a hemispherical dome ringed by a narrow overhanging roof rim, with small rectangular windows set in the wall and five more in the dome. A metal lattice framework arches over the rear half of the dome. It is built of wood, fiberglass, glass, concrete and non-ferromagnetic metals.

George Van Tassel, a former aircraft mechanic and flight inspector, began building the Integratron in 1954 after claiming extraterrestrial contact in August 1953. The main structure was completed around 1959, and he worked on the device until his death in 1978. Construction was funded largely by donations, including from Howard Hughes, and by the Giant Rock Spacecraft Conventions.

Visitors attend sound baths where quartz crystal bowls produce a deep tone that echoes through the wooden dome. These sessions take place in a circular room where participants lie on the floor and listen to the vibrations.

The building sits in the middle of the Mojave Desert and requires advance booking for any sound bath session. Visitors should reserve early as sessions often sell out weeks ahead.

Van Tassel claimed the Integratron was built entirely of non-ferromagnetic materials, the equivalent of a modern radome, so the structure would not distort the electromagnetic fields he sought to generate. The building was added to the National Register of Historic Places in April 2018.