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:Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.