With its pretty name, Rua Bela runs up from the riverside park of Passeio Alegre in Porto's Foz district.
It's a quaint little cobbled street like many in the old part of Foz. The point of interest here is the "Passos de São João da Foz do Douro" - that is the elaborate window you can see. It is actually a baroque styled granite cabinet of sorts and inside is a shrine to St John.
There are around ten, almost identical, shrines scattered around the area, which I gather form stations on religious processions. Whether this tradition is continued I couldn't say.
