There’s a high place called Serra de Montejunto, in Alenquer/Cadaval. The highest point is 666 meters.
I love going there and see all the villages and cities down there. There we are able to even see the sea and Berlengas (little islands next to Peniche) or Ponte 25 de Abril (Tejo).
It is awesome watching the clouds shadows on the fields and the way the relief changes the light.
It is a great place to get to know Oeste. You can locate a bunch of cities and places of interests. It is incredible having so many beautiful places in just one shot!