Puerta del Sol
The Puerta del Sol (Spanish for "Gate of the Sun") is one of the best known and busiest places in Madrid. This is the centre (Km 0) of the radial network of Spanish roads. The square also contains the famous clock whose bells mark the traditional eating of the Twelve Grapes and the beginning of a new year.
The Puerta del Sol originated as one of the gates in the city wall that surrounded Madrid in the 15th century. Outside the wall, medieval suburbs began to grow around the Christian Wall of the 12th century. The name of the gate came from the rising sun which decorated the entry, since the gate was oriented to the east.
Between the 17th and 19th centuries, the area was an important meeting place: as the goal for the couriers coming from abroad and other parts of Spain to the Post Office, it was visited by those eager for the latest news. The stairs to the Saint Philip church at the square were known as the Gradas de San Felipe, and were among the most prolific mentideros de la Corte (this Spanish idiom sounds as "lie-spreaders of the Court", but it is related with the verb mentar, "to say about someone", not mentir, "to lie", so it is more appropriately translated as "places of the City where people buzz about other people").
The House of the Post Office was built by French architect Jacques Marquet between 1766 and 1768. The building was the headquarters of the Ministry of Interior and State Security during the Francisco Franco dictatorship. It is currently the seat of the Presidency of the Madrid Community.
The Puerta del Sol contains a number of well known sights both domestically and internationally associated with Spain. On the south side, the old Post Office serves as the office of the President of Madrid, the head of the regional government of the Autonomous Community of Madrid (not to be confused with the Madrid City Council, which is housed elsewhere).
Also on its south side, the square holds a mounted statue of Charles III of Spain, nicknamed "el rey alcalde" ("the mayor-king") due to the extensive public works program he set in motion. The famous Tío Pepe lighted sign is above the square's eastern building between the Calle de Alcalá and the Carrera de San Jerónimo. Also on the east side lies a statue of a bear and a madrone tree (madroño), the heraldic symbol of Madrid. Until 2009, the statue stood on the north side at the entrance to Calle del Carmen. The Mariblanca (actually Venus) marks the place of a former fountain.
The Puerta is located in the very heart of Madrid. Immediately to the southwest lies the Plaza Mayor; the Palacio Real, the official home of the Royal Family, is further west. Parliament and the museum district are to the east and the train station Atocha is to the southeast.