At The Roman Baths, City of Bath.
When the Roman invaded Great Britain more than 2000 years ago they discovered hot spring in the area. They build a bath house around the hot water spring. It was used for few hundred years then abandoned. I believed the British did not know how to maintained it. It laid buried for more than a thousand years. During the Victorian time it was discovered by accident. After careful excavation the place had been restored to its former glory. To day we are able to learn how the Roman once live in Great Britain.