Sogamoso was not just another settlement in the Muisca Confederation. Known then as Sugamuxi, it served as the spiritual capital of a people who had built one of the most sophisticated pre-Columbian civilizations in South America. The city was governed by an iraca, a combined ruler and high priest, who presided over pilgrimages to the Sun Temple from across the confederation's territory. The Muisca believed their Supreme Being, Chiminigagua, had created the world by releasing light from her belly, sending two great black birds into the void to spread illumination across the cosmos. The Sun Temple was built to honor Sue, the Sun god, on the banks of the small river Monquira. Its round structure of poles, clay, and reed stood without windows, its interior lit only by the devotion of those who entered. Three concentric rings of wooden columns, harvested from the forests of Casanare, surrounded the building. These columns represented the cosmos itself, and the temple doubled as a burial ground for the most powerful caciques and priests.

The Muisca possessed a working knowledge of astronomy that they encoded into their sacred architecture. At El Infiernito, near Villa de Leyva, stone columns still mark their observations of the sun's path. The Sun Temple at Sogamoso was constructed in precise alignment with solar positions, its design calibrated to the rhythms of the sky. In Muisca mythology, the figure Thomagata was believed to travel between Tunja and the temple each night, repeating his journey ten times before dawn. Whether this story encoded astronomical observations or simply reflected the temple's centrality to Muisca spiritual life, it underscored Sogamoso's role as the place where heaven and earth converged. The Spanish conquistador Gonzalo Jimenez de Quesada, driven by rumors of El Dorado, arrived in Sogamoso in early September 1537. He planned to wait until morning to confront the cacique. His soldiers, however, could not wait.

Four centuries passed before the temple's story resumed. In 1942, archaeologist Eliecer Silva Celis began excavating a Muisca cemetery in Sogamoso and discovered preserved mummies in their tombs. His findings allowed him to pinpoint the original site of the Sun Temple, and he undertook the ambitious project of reconstructing it using historical documents, ethnographic accounts, and the physical evidence his dig had uncovered. The result stands 18 meters high, its dome decorated with symbols that retell the Muisca creation story. Small openings pierce the walls at calculated angles, and every year on December 22 the winter solstice sunlight falls directly onto the central pillar, demonstrating that the reconstruction faithfully reproduces the original temple's astronomical function. Around the rebuilt temple, the cemetery with its mummies has been restored as part of the Archaeology Museum of Sogamoso, which today holds some 4,000 pieces from the Muisca era.

The museum grounds now include examples of malokas and bohios, traditional Muisca dwellings that show how ordinary people lived alongside the grandeur of the temple. A statue of Sugamuxi, the last iraca before the conquest, watches over the site. Governed by the Pedagogical and Technological University of Colombia in Tunja, the museum has become Sogamoso's defining landmark. The city itself still carries its Muisca heritage in its nickname: Ciudad del Sol, the City of the Sun. What makes Sogamoso remarkable is not the destruction but the persistence. The Muisca were nearly erased by conquest, their sacred places burned or dismantled, their gold melted down and shipped to Spain. Yet the astronomical alignments that Silva Celis painstakingly restored still function. The solstice light still finds the pillar. The temple that two careless soldiers destroyed in a single night took four centuries to rebuild, but the knowledge it encoded survived.