This is a church at 359 Broome Street between Elizabeth and Mott Streets in Manhattan, New York City. It was built in 1901 as the Church of San Salvatore and was designed by Hoppin & Koen in the Romanesque Revival style. It is now the Holy Trinity Ukrainian Orthodox Church. (Source: From Abyssinian to Zion (2004))
Romanesque Revival it is a mix of Roman and Byzantine architecture which are harmonically combined. From Roman architecture, there are some columns(looks doric)which are used as small additional decorations, and three front arches for entrances which reminded me of the Arch of Constantine(315 BCE).
Also, this building looks similar to a Roman basilica, they both are elongated, rectangular buildings, divided into 3 parts The middle main nave is higher than the other ones. If to look at the inside picture, we will see that in the back there is a semicircular ledge (covered by a semi-dome).
Trinity church represents Byzantine architecture as well. Inside there are mosaics all around, the altar throne, the iconostasis, the pulpit and the baptismal font. Looks like the outside walls building was made of stone and marble (at least covered by marble). Many Orthodox churches use Byzantine style because Orthodox religion originated from there.
-Yuliya K, team Minerva