Between 1774 and 1778 was lifted on new and current Puerta de Alcalá. Consisting of a garland decoration, embossing, cornucopias, floral motifs, badges and trophies, is clearly inspired by classical Roman art. The two million real need for the works were made by the City based mortgage the discretion of the taverns. construction of a single body, has five openings, while the two extremes and they are lintels, relief decorated with cornucopias and floral. In part that was then outside Madrid has ten columns attached Ionic order, raised on plinths and trimmed with garlands on the capitals. and the inward looking pilasters were made, except in the central arch is the same on both fronts.
The central part of the set stands out with a set of broken lines, incoming and outgoing calls. This part is crowned with a second body consists of a plain entablature, who liaises with the attic door and presented a plaque in the center with a Latin inscription indicating the year and the monarch who ordered its construction, with the text:
"
Rege Carolo III, anno MDCCLXXVIII "
About this attic, a triangular pediment broken and another semicircular behind, flanked by two military trophies;
four trophies, shields and flags in the corners and center of the crown.
keys in the three central arches were put on the heads of lions and side doors were placed crossed cornucopias work of Roberto Michel .
The monument, which took time great iron gates that closed at ten o'clock at night in winter and summer eleven, was attached to the wall of the granary and the gardens of Retiro.
In 1869, shooting of the last remnants of the wall that bordered Madrid.
Door was restored and cleaned, but we wanted to keep the marks left by the French artillery on December 3, 1808, when the city was besieged and bombarded by the troops of Napoleon. When the Hundred Thousand Sons of St. Louis, entered Madrid in 1823 to support the absolutism of Fernando VII, the Puerta de Alcalá received multiple gunshot wounds that remain even today as a witness.
work of Roberto Michel 
. 
The renovation was completed in 1778. 
