Lasnigo is a small country of 458 inhabitants that preserve one of the most beautiful Roman  churches in the Valassina. It’s placed on the top of a hill along the road which connects Erba to Bellagio. It has recently restored and represents a jewel of Roman period in Lombardia. Lasnigo has preserved its ancient shape: a group of houses lying along mountain slope connected to Barni with the hamlets of Dosseglio and Crezzo.