Not far from the marina is this monastery. Commenced in 1501 and completed a century later, they must have used the same builders as us.
For a full history:
https://en.wikipedia.org/wiki/Jeronimos_Monastery
The detail is incredible:
There was a wedding on and I felt a bit sorry for the celebrants as there was a lot of visitors taking photos, due to this we took only one looking down the chapel.