Unique and Famous for its “Metal Castle” with 37 spires symbolizing the virtues needed to reach enlightenment, Wat Ratchanatdaram Woravihara (Loha Prasat) is a Buddhist temple in Bangkok, mandated in 1846 by King Rama III for his grand-daughter, Princess Somanass Waddhanawathy. Only a handful of such structures exist worldwide, making it a rare and must-visit architectural gem.