Another major and perhaps the most famous landmark of Madrid - Puerta del Sol, is the central square of the city. This area was established on the site of the former gate in the wall that surrounded the city in the Middle Ages. The name of the square was through these gates: Puerta del Sol meaning Sun Gate. In 1521 Sun Gate were demolished to expand the entrance to the city, the space around them increased, and thus this place was formed area.

Today, the Puerta del Sol has the shape of a month and is a place of crossing of eight road immediately. In the center area of ​​the ground plate is mounted in bronze, which is considered a starting point of zero road distances in Spain, because the Puerta del Sol is the center of Madrid and Madrid, in turn, the center of the country.

At the center of the square is a monument to Charles III, who is depicted sitting in the saddle and on the corner of street Carmen is made of bronze sculptures Bear and strawberry tree is a symbol of the Spanish capital. These are the characters depicted on the coat of arms of Madrid.

There is also located post office, the date of construction of which relates to 1761. The top of the tower of the building is decorated with clocks that have traditionally New Year's Eve discourage strikes, symbolizing the New Year. Now this building is the seat of government of the Madrid Autonomous Region.

In 1919, it was under the Puerta del Sol was built first line of the city's subway.