The Church of the Ascension is an Episcopal church built in 1840–41. It was the first church to be built on Fifth Avenue and was designed by Richard Upjohn in the Gothic Revival style. The interior was remodeled by Stanford White in 1885–88.
The brownstone church is symmetrical, and features a square tower. Stanford White's interior design features a pulpit designed by Charles Follen McKim, mosaics by D. Maitland Armstrong, a marble reredos by Louis Saint-Gaudens and several stained glass windows by John LaFarge and his altar mural The Ascension. This is considered to be one of his best works
The parish house designed by McKim, Mead and White took a previously existing building and turned it into a Northern Renaissance-inspired building of yellow brick with bottle-glass windows.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.