There is one place named Koyama-ike in Japan.
All places in the world called "Koyama-ike".
Ono (18)
Ota (17)
Hongo (16)
Minato (15)
Wada (15)
Kawasaki (14)
Hama (14)
Ohama (14)
Tomari (14)
Oshima (13)
Hara (13)
Nagahama (13)
Nakamura (13)
Yoshida (12)
Okubo (12)
Sakai (12)
Hirose (11)
Kawaguchi (11)
Funakoshi (11)
Shinden (11)
Seto (11)
Okawa (11)
Kanayama (11)
Ogawa (10)
Ohara (10)
Nakayama (10)
Takata (10)
Oura (10)
Otani (10)
Shirahama (10)