Roman Baths, Bath (or Aquae Sulis as it was known then). The hot springs still pulse through the Great Bath that the Romans built in the first century AD. Naturally hot, mineral rich spring water at a temperature of 460C rises from here at the rate of 1,170,000 litres (thatÕs 240,000 gallons) every day. http://www.romanbaths.co.uk/