The heart of the historical center of Manaus is San Sebastian Square (Largo de São Sebastião)—a unique public space that serves as the main cultural gateway to the past of the state of Amazonas. This square is not just a place for a stroll, but a true architectural ensemble reflecting the grandeur of Brazil during the rubber boom era.

The centerpiece of this ensemble is the legendary Amazon Theatre (Teatro Amazonas)—a magnificent Neoclassical building with a pink facade and a vibrant dome decorated with the colors of the national flag. Nearby rises the Church of Saint Sebastian, notable for its unusual architecture: the temple has only one tower. According to local legend, the second tower never arrived from Europe, having sunk with a ship in the Atlantic.
The perimeter of the square is adorned with charming colonial houses painted in pastel colors, which today house cozy cafes and craft shops. Of particular interest to tourists is the full-size model of the first tram from 1895, installed here as a monument to the region's technical progress.