In modern Coimbra there are few remains from ancient Aeminium. The most important is the cryptoporticus, an underground gallery of arched corridors built in the 1st or 2nd century AD to support the forum of the city. Gaius Sevius Lupus was probably the architect. During the Middle Ages the bishop's palace, now turned into the Machado de Castro Museum, was built over the forum; the cryptoporticus is located under it. The cryptoporticus can be visited through the museum.
