There have been a great deal of archaeological finds in the area surrounding Lyon, many of which have occurred completely by accident as the city has developed. This amazing series of buried tombs, was found by builders, who were attempting to lay a new railway out of the city. Some of the best tombs have been fully excavated and are displayed beside the main road towards Paris. Others can be seen by visiting the site, which is thought to have a history dating back to 1BC.