About an hour's drive south of Mexicali on the highway toward San Felipe lies the wreckage of a Boeing 727 that was deliberately crashed for a 2012 Discovery Channel documentary called "Curiosity: Plane Crash". The aircraft was flown remotely after the crew bailed out, then guided into a controlled impact in the Sonoran Desert. Crash test dummies were placed in different seat positions to study which areas of a plane offered the best survival chances.
The aircraft remains where it landed and has become a strange roadside attraction — twisted fuselage, broken wings, dummies sometimes still strapped into seats. There is no formal access or signage; you stop at the side of the road and walk in across packed desert. Bring water and watch for snakes in summer. The site is technically on private land but locals tolerate visitors who stay respectful.