Hinomaru Driving School

There's an unique building with a big ball on the wall beside JR Yamanote Line.
This is Hinomaru Driving School.　There're courses for driving practice in front of this building.

Hinomaru means Japan's flag, rising sun.
I don't know what's inside the ball.

**********************************************************
<The Nearest Station>

JR Ebisu station /JR Meguro station on Yamanote Line

**********************************************************