When archaeologist Steven Burrow stood in the chamber of the Bryn Celli Ddu tomb at dawn on the summer solstice he saw the sun rise through the opening. "It's quite exhilarating," he said. -- Pictures: Steven Burrow
Postholes found outside the Bryn Celli Ddu tomb indicate a wooden structure may have preceded the current tomb monument, which consists of a stone circle surrounding a stone-lined passageway. -- Pictures: Steven Burrow