Naruko Tenjinja (成子天神社), founded in 903 according to legend, is a Shinto shrine located near the skyscraper district on the west side of JR Shinjuku Station.
This shrine is dedicated to Sugawara no Michizane (845 - 903), a politician and scholar who is widely worshiped in Japan as a god of learning.
Though the shrine complex is post-war reconstruction made with concrete, the precincts of the shrine is neatly maintained like a garden.
It's a 2-minute walk from Tokyo Metro Marunouchi Line Nishi-Shinjuku Station.
Hand pump is located in front of Sui Jingu, a small shrine enshrining a divinity of water. Standing beyond the pump in the photo is Haiden. Haiden is where you say prayers to the diety enshrined in Honden behind Haiden.
Kaguraden is where music is played at festivals.
Honden is where the main deity of the shrine, in this case Sugawara no Michizane, is enshrined.
Fuji-zuka is a mound which was created to worship Mt Fuji. It is covered with lava rock conveyed from the foot of the mountain.
Juniso Kumano Shrine is relatively near this site.