The Integratron is hard to explain. It's a big dome built with no nails and perfect acoustics out in middle of the desert. Not far, as the crow flies, from Twentynine Palms Marine Base and Joshua Tree National Park. It was built by a man named George Van Tassell who believed very strongly that aliens had visited the site, which sits on the confluence of several underground rivers and fields of concentrated energy. Regardless of the aliens, it's still a pretty spectacular place. Click the photo below for a slideshow of images from the Integratron and Joshua Tree National Park during a full moon.