Can't miss this church walking along the river. Inside is the usual high high ceilings, reliefs,…read moreand some stellar stained glass. It's about 3 meters to the top- (about $3) tickets available on site - no rez required. Stairs! First level a killer, you & your backpack will have a hard time navigating the tiny twisty stairs. Thankfully, there's a couple rest stops, one even has chairs by the windows, bring a book- or rest- pretending to be looking for something in your bag.
There are eight windows on top with stunning views. Minus one star because they closed off the balconies, making it impossible to see past the 4' + decorative concrete barrier, except for snippets through the medallions.
All in all, a worthwhile stop, but photographers will have to look for another vantage point.