Arriving at Arequipa’s Plaza de Armas for the first time produces an effect that is difficult to describe to anyone who has not experienced it. It is not the impact of a large square nor the amazement at an isolated monumental façade. It is something more subtle: the feeling that everything surrounding that space was conceived as a whole, not as a sum of buildings. Sillar, the cream-colored volcanic stone used to build the Cathedral, the arcades, the churches, and the mansions around it, visually unifies every element of the square under the same tone, the same texture, and the same construction logic. Under the midday sun, that uniformity produces an almost unreal brightness. At sunset, when the low light hits the façades from the west, the sillar turns golden and the entire square changes character within minutes.
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A city that was born here
On August 15, 1540, Garci Manuel de Carbajal laid out the Villa de la Asunción de Nuestra Señora del Valle Hermoso de Arequipa in the Chili River valley. That founding name, which Arequipeños never used in everyday practice, describes exactly what the first colonizers found: a fertile and protected valley, with abundant water, a temperate climate, and three volcanoes as a permanent visual reference on the horizon. The plaza was the first space that was defined in that foundation, as was customary in all colonial cities of the viceroyalty, and from that first day it functioned as the center around which the city grew.
Charles V elevated the town to the category of city the following year, on September 22, 1541, through a royal decree signed in Toledo. That recognition accelerated the construction of the buildings surrounding the plaza and established the urban pattern that Arequipa maintains to this day: a rectangular square surrounded by arcades with the main church closing one side and the buildings of civil power completing the others.
Sillar: why Arequipa is white
Sillar is a porous volcanic rock of cream color extracted from the quarries of the Chili River valley and from the slopes of the volcanoes surrounding the city. It is a light stone, relatively soft and easy to work with simple tools, which allowed colonial stonemasons to develop in Arequipa a tradition of carved façade ornamentation that has no equivalent in any other city in Peru.
That ease of carving produced something unexpected: a unique architectural style. Arequipeño stonemasons of the 17th century, many of them of Andean origin, took the schemes of Spanish Baroque and filled them with their own visual vocabulary: angels with mestizo features, acanthus leaves mixed with Andean flowers, figures of pumas and serpents integrated into compositions that technically follow European Baroque rules but in detail respond to a completely different perspective. This style, which art historians call Arequipeño mestizo Baroque, was born directly from the combination of the local material and the hands that worked it. Without sillar, that style would not have existed. Without that style, Arequipa would be just another colonial city of the Viceroyalty of Peru.
The Cathedral: seventy columns on the north side
The Cathedral Basilica of Santa María occupies the entire northern side of the plaza. Its façade stretches from one end to the other of the longest side of the square with seventy columns with Corinthian capitals that give the ensemble a horizontality that contrasts with the vertical towers at the ends. Construction began in 1540, the same year the city was founded, and was not completed until 1656. During that long century of construction, the cathedral suffered earthquakes, fires, and partial reconstructions that modified its original form until producing the neo-Renaissance building with Gothic influence seen today.
The earthquakes of 1666, 1668, 1687, and 1784 caused damage of varying severity that was repaired successively. The most destructive in recent times was in 2001, which completely knocked down one of the two towers of the façade. The reconstruction lasted one year, and in 2002 the cathedral was reopened with the restored tower. This repeated process of destruction and reconstruction over four centuries makes the Cathedral of Arequipa a building that in some sense was never fully completed: there was always some part under repair, some element that had to be rebuilt after the last earthquake.
The interior has five naves, a marble main altar, colonial paintings, and the most surprising element of the ensemble: an organ brought from Belgium in the 19th century, twelve meters high, that visually dominates the space from the choir. It is not common to find an instrument of that scale in a cathedral in a provincial city, and its presence speaks of the prosperity Arequipa had during the centuries of the wool trade and the mining trade of southern Peru. The museum inside the cathedral has pieces of liturgical gold and silverwork, embroidered ornaments, and paintings that complement the visit to the architectural space.
The Church of the Company: the most elaborate façade in Arequipa
In the southeast corner of the plaza, separated from the Cathedral by the length of the southern side, the Church of the Company of Jesus has the most elaborate and most photographed façade in Arequipa. Architect Gaspar Báez designed it in the 17th century, but the earthquake of 1650 forced it to be rebuilt before completion. The current version is the result of that reconstruction and defines the Arequipeño mestizo style in its most refined expression.
The façade is completely covered with ornamentation carved directly into the sillar: helical columns, reliefs with angels with Andean features, plant motifs that mix European Baroque acanthus with local flowers and fruits, and a composition that fills every available centimeter without creating the sense of overload that in another material would be overwhelming. Sillar softens the contrasts of light and shadow between the reliefs and gives the whole a readability that marble or granite would not provide.
Viewing that façade from the distance of the plaza allows you to see the full composition. Getting close to within a meter of the stone allows you to see the details of each carved figure. Both perspectives are different experiences, and both deserve time. For anyone interested in colonial American architecture, the façade of the Church of the Company in Arequipa is one of the two or three most important objects on the continent.
The interior has a gilded main altar with gold leaf work and side chapels with paintings of Cusco influence. The adjacent Jesuit cloister, now used commercially, preserves the original stone structure and allows you to see the scale of the complex that the Jesuit order built at that point in the historic center.
The arcades: where the plaza comes alive
Three of the four sides of the plaza are lined with arcades, the arched corridors built in sillar that in colonial times housed the town council and merchants and that today hold cafés, restaurants with terraces, and handicraft shops. The Municipal Portal on the front of the local government building, the San Agustín Portal on the east side, and the Flowers Portal on the west front are the three corridors that complete the perimeter of the plaza on the sides where the Cathedral is not.
What makes the arcades the liveliest element of the plaza is that they are not ornamental but functional: people use them. At 8 in the morning, Arequipeños have coffee overlooking the plaza before work. At noon, restaurants bring tables out onto the terraces. At 6 in the evening, groups of travelers occupy the corners with views of the entire ensemble and the volcanoes on the horizon. This continuity of use throughout the day is what distinguishes Arequipa’s Plaza de Armas from colonial plazas that function as empty tourist stages between guided visits.
The fountain and the Tuturutu
In the center of the plaza, the bronze fountain has at its highest point the figure of a small character with a trumpet whom Arequipeños call the Tuturutu. The most widespread legend identifies him as the official messenger of the Inca, the runner who traveled the roads of the Tahuantinsuyo and announced with his instrument the arrival of news or orders. Other versions associate him with European traditions from the colonial period. What is not disputed is that the figure has been in that spot since colonial times, that it was restored in 1920, and that for Arequipeños it has an emotional value that no historical data fully explains.
Day and night
The plaza has two completely different moments that are both worth experiencing. During the day, the sunlight on the sillar produces that characteristic whiteness that gave Arequipa its nickname and makes photos taken at noon look overexposed even when the sky is clear. The best times to photograph the architecture are early in the morning, when the low eastern light illuminates the Cathedral façade at an angle that emphasizes the relief of the columns, and late in the afternoon, when the same effect occurs on the churches on the south side.
At night, artificial lighting transforms the color of the sillar from white to gold, and the whole plaza takes on a completely different presence. The arcades with their lit restaurants, the Cathedral façade with side lighting, and the towers silhouetted against the dark sky create an atmosphere that many travelers describe as the most beautiful in Arequipa’s historic center. Staying in the plaza after dinner, when tourist traffic decreases and the space returns to its usual residents, is one of the calmest and most revealing experiences the city offers.