Forgotten secret doors and underground passages

The square's architecture is dominated by a symmetrical cluster of red-brick buildings, with nine arched passages connecting to the outer streets. On the surface, they are simple entrances, however, the real secrets are hidden beneath the surface. Underneath the Plaza Mayor are a series of hidden passages that were used centuries ago as routes for the transportation of goods for traders and as secret access points for fugitives.

One of the most famous of these passages leads to the Posada del Peine, an old inn on the north side of the square, one of the oldest in Madrid, founded in 1610. Legend has it that at the end of the 16th century, the nobility and the underground used these passages to enter and exit the city in secret, to avoid censorship and even to carry out clandestine transactions. Today, most of these passages are closed, but if you look closely at the tiles in the southeast corner of the square, you'll find slabs of stone that are slightly different than the rest, and underneath them may lie an ancient pathway that hasn't been completely closed.

The Balcony to Witness Dueling and Intrigue

Standing in the center of the square and looking up, you can see a special balcony - it belonged to the Casa de la Panadéria and was once the best place for royalty to watch bullfights. However, the history of this balcony goes far beyond simply providing aristocratic entertainment.

In the 17th century, the Spanish royal family held many secret meetings here to plan political strategies. Even more dramatically, some legendary court intrigues have been linked to this balcony. For example, a Spanish nobleman was once accused of treason here in public, and then escorted directly to the execution chamber in the center of the square. Historians have also uncovered documents indicating that at least one of the secret executions took place at night, with the executioners roaming around the square armed only with torches, making the whole thing seem even more bizarre.

Invisible symbols in a painter's brush

The Plaza Mayor is not only a stage for history, but also a source of inspiration for artists. Since the 16th century, many painters and engravers have used this square as a subject for their works, and one of the most famous works is Juan de Villanueva's painting “Plaza Mayor by Night”.

If you look closely at the painting, you will find some hidden details: on the building in the southwest corner of the square, the artist skillfully depicted a window that does not exist in reality. Some believe that this symbolizes Madrid's hidden history, while others speculate that it may be a coded tribute from the painter to someone who wishes to remain anonymous. In addition, some researchers believe that some of the blurred figures in the painting may be members of the underground organizations of the time, who met secretly in the plaza at night, and it is in this way that the painter recorded this history.

Spooky Nights and Ghostly Legends

The Piazza Mayor was the site of the public execution of the Inquisition, especially in the 16th and 17th centuries, where many people accused of heresy were tried and even executed. Over time, legends of apparitions naturally arose.

Local residents and some police officers patrolling at night have reported that figures wearing black cloaks sometimes appear in certain corners of the square, especially near the old inn. These figures tend to flicker in and out of the night, as if reenacting some scene from the past. Even creepier, some people claim to hear faint murmuring noises in the dead of night, like someone whispering a prayer or some kind of unintelligible incantation.

Rumor has it that these apparitions are the very same victims who were convicted of heresy back in the day, and whose souls still do not rest in peace. Although this cannot be scientifically proven, many tourists still relish these stories and even make a point of coming here at night to look for paranormal phenomena.

Plaza Mayor is more than just a calling card for Madrid, it's like a heavy history book, full of secrets and unsolved mysteries. From underground passages to hidden balconies, from painterly symbols to ghostly legends, everything here tells a story that time has forgotten. If you are strolling through this stone paved square next time, slow down and take a closer look at those corners, maybe you will discover a new secret or, perhaps, an unheard story.