In episode 12 of Your Lie in April we see Kousei, Hiroko and Koharu visiting a shrine which is based on Ekoda Sengen Shrine in real life. This shrine is located right outside the north exit of Ekoda Station.
Image from Episode 12 - 04m38s
The shrine seems to be much smaller in real life.
Image from Episode 12 - 04m40s
It doesn't seem to have a bend in the path like in the anime, but here's a picture of the main shrine building.
Image from Episode 12 - 04m43s
Kousei, Hiroko and Koharu walking to the shrine.
Image from Episode 12 - 04m55s
The signs are different here.
Image from Episode 12 - 04m56s
This place where you can sit is also slightly different, but you can see the similarities at least.
Image from Episode 12 - 04m58s
View towards the purification font from outside the shrine area.
Image from Episode 12 - 05m28s
The tree and stone lantern on the right are similar.
Image from Episode 12 - 06m35s
The building on the left is different here.
Image from Episode 12 - 06m48s
The Lawson store in the background here seems to have opened after the anime was made.
Image from Episode 12 - 06m57s
There were trucks parked all over the place when I visited for some reason, so I couldn't get the best of shots of the buildings in the background here.
Image from Episode 12 - 07m01s
The air conditioning unit on the wall of the building seems to be the same.
Image from Episode 12 - 07m11s
A shot of Kousei with his mother at the shrine when he was younger.
I also checked for anime ema, but I didn't find any.
This location was visited on 2017/02/14.
Special thanks to the ones who went here before: