Okinawa, Japan - October 21, 2016: Gyokusendo Stalactite cave in Okinawa island, Japan. The cave was formed approximately 300,000 years ago and has 5000 meter long
日本の国旗 Flaga علم اليابان of Флаг Japan Bandiera del Drapeau Bandera de Японии Japans 일본의 국기 Japón du Japon Giappone Nihon No Kokki Japonii Giapponese 日章旗 Nisshōki 日本国旗 日の丸 Flagge Hinomaru Flag