If you get tired of city life and want to experience a more relaxed atmosphere outside of Rome, I would advise you to visit the lake Bracciano. There are three different villages on this lake and today I have visited one of them – Trevignano, it is around 50km from Rome.
Due to the big size of the lake, you will feel as you have come to the seaside. The beautiful pathway near the lake together with small cafés and restaurants along it will make you feel like you have entered a typical holiday resort at the seaside. The vivid atmosphere of the place was additionally enhanced by a flea market that supposedly takes place there every other Sunday.
Beside the stroll alongside the lake, I would advise you also to check the small but very charming inner city of Trevignano that will greet you with its little hidden staircases and narrow streets.