Check out St. John's Archcathedral
St. John's Archcathedral probably has one of the most unique facades of any cathedral out there. St. John's Archcathedral is a Roman Catholic Church, one of the 3 most prominent churches in the city and the only one that possesses the title of the arch cathedral. The facade came in many forms but due to the conflicts before and during World War 2, the structure was destroyed and renovated many times over.
It has transitioned through various architectural styles throughout the course of its existence, from Gothic to the current design, which was actually recreated based on the assumed appearance of the 14th-century church from depiction, giving it its distinctive out-of-place-yet-fit-right-in look. Go on this fabled Warsaw Walking Tour, where the local guide will take you to many of the hidden jewels you might not have seen on your own if you want to take a deeper dive into Warsaw's architectural landscape.