Kalutara Chaitya, a unique hollow stupa in Kalutara, Sri Lanka, was completed in 1974 under the patronage of Sir Cyril de Zoysa. Designed by Justin Samarasekera, the stupa houses 74 murals depicting the Buddha’s life and four smaller inner stupas. Visitors can explore its interior, admire the wall paintings, and experience this significant site of Theravada Buddhist worship and Sri Lankan architectural heritage.