The Senado Square is a paved town square and is part of the UNESCO Historic Centre of Macau World Heritage Site. It is an elongated triangular shaped square and connects Largo do São Domingos at one end and Avenida de Almeida Ribeiro on the other. It covers an area of 3,700 square meters. On our walk through the crowded streets from St. Paul's to the Square we visited St. Dominic's, a yellow baroque-style church.

The square was named after the Leal Senado, a meeting place for the Chinese and Portuguese in the 16th to 18th centuries, located directly in front of the square, where Leal Senado Building stands today. A small garden with a fountain is located in the centre of the square, 

The vast majority of the buildings around the square are European styled and many are protected monuments. The square used to allow traffic and parking lots but with increasing number of tourists the entire area was covered by Portuguese pavement in the early 1990s and designated a pedestrian-only zone.

Many large events in Macau are hosted on the square including festival celebrations, flea markets and performances. The governors of Macau also used to inspect their troops there. A number of Hong Kong films in the 1950s and 1960s had scenes shot at the square.

The 2005 100 patacas note issued by the Banco Nacional Ultramarino features the square on its obverse side.