The current construction began in the early 17th century and was completed in 1731.

The Cathedral was dedicated to the Virgin of the Assumption and became a cathedral in 1963.

It has a basilica plan with five naves, with the central nave being the largest. The octagonal dome is covered in Puebla mosaics.

The square-based tower was added in the early 20th century and features a small dome.

The facade is in a sober neoclassical style and has two levels with a pediment. The first level has a semicircular entrance flanked by two Doric-style columns. The second level houses the choir window in the center, above which there is a medallion.

The interior has a simple decoration, and notable features include the Baccarat crystal chandeliers, the main altar with Baroque ornamentation, and the figure of Saint Sebastian Martyr, the city's patron saint.