Historical Sites & Ancient Ruins

This collection highlights the strategic historical importance of Chaves, from its origins as the Roman city of Aquae Flaviae to its medieval and 17th-century defensive structures. Key sites include the remarkably preserved Trajan's Bridge, the Vauban-style Forte de São Neutel, and several hilltop castros. The list features prehistoric rock engravings at Outeiro Machado and the ruins of Roman infrastructure, such as the Abobeleira dam, which illustrate the region's long-standing role as a vital military and thermal hub in northern Portugal.