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Starting in 1870, the royal family began to stay in Cascais during the summer, along with the rest of their close relatives. In this light, the "summer architecture" developed, magnificent buildings and castles intended to be used by the royal court and others.
This route indicates some of the noteworthy buildings in the city.
The next photo taken that day shows the area where the current sign is located - Casa D. Pedro, built in 1930 Click for a larger image
Translation of the text on the sign: SUMMER ARCHITECTURE ROUTE