Kazan Cathedral, Saint Petersburg the cathedral from a small square behind it is sometimes cited as one of the finest ever constructed. The cathedral's huge bronze doors are one of four copies of the original doors of the Baptistery in Florence, Italy (the other three are at Grace Cathedral in San Francisco, United States, at the Nelson-Atkins Museum of Art in Kansas City, United States, and at the Florence Baptistery itself). The Kazan Cathedral is considered to be the model for the neoclassical style of Helsinki Cathedral, one of the most iconic landmarks of Helsinki, Finland. Kazan Cathedral, Saint Petersburg Kazan Cathedral or Kazanskiy
Grace and Holy Trinity Cathedral (Kansas City, Missouri) in the Nave. Grace and Holy Trinity Cathedral is one of the most important living museums of stained glass in the United States of America. Within its walls are included a 1901 window from the studio of Otto Heinigke (1850–1915) and Owen J. Bowen (1866–1902), the only example of their work in a church west of the Mississippi River; a 1903 window by Frederick Stymetz Lamb (1862–1928) of J&R Lamb Studios; a 1911 window from Duffner and Kimberly, designed by J. Gordon Guthrie (1874–1961), one of the largest single windows ever produced by that firm; a window designed in 1912