Considering the Margarida Da Praca in Viana do Castelo?
A VT member wrote the following comment about visiting Viana do Castelo:
Castelo de S. Tiago da Barra by ncfg
The Castle or Fort of Saint Tiago da Barra is a must see. It is located near the mouth of the river Lima, so you will have beautiful views from there.
This fort is a sixteenth century construction. It was built on the orders of Manuel I to help resolve the problems of pirates.
After exploring the fort, don't miss a visit to the headquarters of the Alto Minho Regional Tourist Board, which is installed in a building inside the fort.