The Palácio da Bolsa (Stock Exchange Palace) is a neoclassical style and historical building in Porto, Portugal. The palace was built in the 19th century by the city's Commercial Association. It is located in the historical centre of Porto, designated World Heritage Site by UNESCO.

​The highlight of the Palace is, however, the Salão Árabe (Arab Room), built between 1862 and 1880. The room is decorated in the exotic Moorish Revival style, fashionable in the 19th century, and is used as reception hall for personalities and heads of state visiting Porto.

 

This is a very important space for the history of Porto and Portugal, since the treaty of accession of Portugal to the European Union was signed in this room.