A man walks by three statues depicting three of the five kings of knowledge during a press preview of the exhibition ' Daigo - ji - The secret Buddhism in Japan ', in Bonn , Germany , 24 April 2008 . The exhibition takes place from 25 April to 24 August 2008 at the Bundeskunsthalle and shows treasures of the holi mountain . EPA / OLIVER BERG < 저작권자 ⓒ 2007 연 합 뉴 스 . 무단 전재 - 재 배포 금지 . >