Covered in blue painted tiles, this unique chapel located in the very heart of Old Porto should be on everyone's must-see list. There are 15,947 tiles in total covering 360 square meters. The pictures made of these tiles depict the death of St Francis, the martyrdom of St Catherine and other scenes from the lives of the saints.
Free of charge.
Wikipedia (Portuguese) https://pt.wikipedia.org/wiki/Capela_de_Santa_Catarina_(Santo_Ildefonso)
Phone +351 222 005 765
Address Rua de Santa Catarina 428, 4000 Porto, Portugal
Coordinates 41°8'59.355" N -8°36'20.005" E