The Church of Santa Maria, is an architectural masterpiece designed by Adolf Gaudy and built between 1914 and 1917. For me, this church is the most beautiful and glamorous church in Saint Gallen!
There are two big beautiful round windows but the most beautiful thing is the dome with the small windows. The church was built in the style of Art Nouveau. There are beautiful paintings by Fritz Kunz and art glazing by Richard A. Nüscheler.
See this Video on Youtube