Puno developed on the western shore of Lake Titicaca within a region occupied by Andean communities long before Spanish rule. Trade, agriculture, herding, fishing, and ritual connected settlements across the high plateau. The colonial town was formally reorganized in 1668 under the viceroy known as the count of Lemos, following conflict associated with nearby mining settlements. Its central square and religious institutions expressed Spanish authority, but the town's daily life continued to depend on Indigenous populations, regional exchange, and the demanding environment of the high-altitude lakeshore.

The principal church, now the Cathedral Basilica of San Carlos Borromeo, developed over a lengthy building campaign and was completed in the eighteenth century, traditionally in 1757. Its imposing stone façade combines Catholic imagery with decorative forms shaped by local and regional craftsmanship. Towers frame the entrance, while carved columns, foliage, figures, and dense ornament animate the surface. The building belongs to the Andean Baroque, a tradition created through the participation of Indigenous and European-trained artisans within unequal colonial institutions rather than by a single imported architectural model.

The cathedral and surrounding plaza provided settings for worship, procession, civic announcements, markets, and demonstrations of social rank. Religious brotherhoods, donors, clergy, musicians, and artisans contributed to the life of the church. Nearby houses and public buildings connected it with administration and commerce, while routes around the lake linked Puno with communities in what are now Peru and Bolivia. Mining and trade brought resources but also instability, and the region experienced the pressures of tribute, labor demands, land disputes, and resistance to colonial authority.

Independence and the establishment of the Peruvian republic changed government without removing the city's deep social inequalities. Puno later became an episcopal center, giving its principal church cathedral status. Rail connections and lake transport strengthened commerce during the nineteenth century, while regional cultural movements emphasized Andean identity. The city's religious festivals developed through the interaction of Catholic devotion, local traditions, music, costume, and dance. The Virgen de la Candelaria celebrations became especially prominent, although their central sanctuary and institutional history should be distinguished from those of the cathedral itself.

Puno's historic center remains a place of residence, government, worship, and exchange within a growing modern city. Conservation must address stone weathering, roofs, seismic risk, traffic, and the effects of commercial alterations around historic streets. The cathedral is significant for its craftsmanship and urban role, but it gains meaning from the wider lakeshore society that built and maintained it. Together the church and center reveal colonial reorganization, Indigenous artistic participation, republican change, regional trade, and the continuing negotiation of cultural identity in the high Andes.