If it is one thing the city doesn't lack, its majestic temples, but some more than others, stand out with their impressive architecture. Despite its central location near Wat Saket and several Bangkok city hotels such as the contemporary AVANI Atrium Bangkok, this temple has gone largely unnoticed by many. Commonly referred to as the 'metal castle', the temple was built in 1846, the unique design inspired by two other temples found in India and Sri Lanka. The temple has 37 metal spires corresponding to the 37 virtues to enlightenment, and multiple concentrically square levels built on geometrically aligned pillars.