In 1892 an amateur archaeologist named Arthur Bulleid spotted unusually green vegetation in a flat field north of Glastonbury and concluded that something man-made lay below. He had found one of the most important Iron Age sites in northern Europe: a village of around 100 huts built on a wooden platform over a freshwater marsh, occupied from about 250 BC to 50 AD.
The waterlogged soil preserved organic material that would have rotted at any other British site. Wooden bowls, leather, woven baskets, even fragments of cloth have come out of the peat. The site itself is now a flat field marked by a small monument — there is little to see in situ — but the finds are displayed at the Tribunal Museum on the High Street. Worth a short detour for context if you have already visited the Tribunal.