Puerta del Sol is the famous Madrid square where Spain's midnight grape tradition is celebrated.
The square is one of Madrid's central public spaces and contains the clock whose midnight chimes guide the eating of twelve grapes on New Year's Eve. The broadcast of those chimes allows people across Spain to follow the ceremony from homes, public venues, and other gathering places.
Puerta del Sol also has major civic and symbolic significance beyond New Year's Eve. It is associated with landmarks including the statue of the Bear and the Strawberry Tree and the traditional Kilometer Zero marker for Spain's radial roads.
The square is sometimes confused with Madrid's Plaza Mayor, another well-known historic location. Plaza Mayor is a major tourist site, but the nationally famous New Year's Eve clock and grape countdown are centered on Puerta del Sol.