Temple XX in the ancient Mayan city of Palenque. Under the temple is a 1,500-year-old burial chamber, unreachable except by micro-camera.
To get to the hidden tomb, researchers had to descend from the top of the temple.
A ladder leads into Temple XX, from which archaeologists threaded a video camera into the burial chamber.
A 6-inch (15 cm) by 6-inch hole leads to the unexplored burial chamber.
The first images of the inside of the 1,500-year-old burial chamber reveal red-and-black painted walls.
A mural decorating the walls of the 1,500-year-old burial chamber consists of nine characters outlined in black on red.
Murals on the tomb walls.
A stepped ceiling and the thick slab gateway of the burial chamber.
Pottery, jade and shell sit on the burial chamber floor. Archaeologists believe the burial chamber holds the fragmented bones of a ruler from around 431 to 550 AD.
