The square was part of the Pombaline reconstruction plan designed to modernize Lisbon following the 1755 earthquake and tsunami.
The statue of King José I features a serpent entwined around the pedestal, symbolizing the destruction of the earthquake.
The Rua Augusta Arch took over 100 years to complete, with construction beginning in 1755 and ending in 1873.
The square sits on reclaimed land near the estuary of the Tagus River.
During the 19th century, the square served as the primary gateway for foreign royals arriving in Lisbon by boat.
Praça do Comércio is Lisbon's largest riverfront square, situated on the site where the Royal Ribeira Palace stood until its destruction in the 1755 earthquake. The square features a U-shaped design enclosed by symmetrical yellow-painted buildings with arcaded galleries. At its center stands a bronze equestrian statue of King José I, sculpted by Joaquim Machado de Castro in 1775. The north side is anchored by the Rua Augusta Arch, which serves as the formal entrance to the city's Baixa district. The southern side opens directly onto the Tagus River, featuring a marble Cais das Colunas landing stage originally reserved for royalty and visiting dignitaries. The square serves as a central hub for official state ceremonies, public events, and transit connections. It is officially known as Terreiro do Paço, reflecting its historical status as the palace grounds.
The center of the square looking toward the Rua Augusta Arch to capture the full symmetry of the yellow facades.
Walk through the Rua Augusta Arch to access the elevated observation deck for views of the grid-patterned streets.
Visit the Cais das Colunas at low tide to see the marble steps leading directly into the river water.
Avoid dining at the immediate terrace cafes within the square as they are known as high-priced tourist hubs.
Do not accept unsolicited offers for souvenirs or tours from individuals in the middle of the square.