Commerce Square, known as Praça do Comércio in Portuguese, is a grand public plaza located in the heart of Lisbon, Portugal. Set by the Tagus River, this historic square is known for its beautiful arcades, the grand statue of King José I, and the impressive Arco da Rua Augusta. It has been a significant landmark since it was rebuilt after the 1755 Lisbon earthquake, serving as a hub for commerce and the entry gate to the city.