Senlis the middel aged town

Senlis is a little town about 50 km outside Paris in France. This with most of its housing is hundreds of years old. And ordinary french people still lives in them. The town also contains Roman ruins from year 200, and among other a large still standing former monastery I think, called Vestiges du Château royal et Parc. Which is about one thousand years old. In Senlis there is also The Senlis Cathedral. A famous 257 feet tall Roman Gothic church, a French landmark, which looks both fantastic and scary.. It took more than 300 years to finish in the 1500`s.