Wat Maha That Yuwarat Rangsarit Ratchaworamahawihan

"Currently the headquarters of the Mahanikai school of Buddhism, Thailand’s largest monastic order, Wat Mahathat dates back to the 18th century—it even precedes the founding of Bangkok—and is one of Ayutthaya’s most important landmarks. Its name translates to "Monastery of the Great Relic," and it's believed to house a relic of the Buddha. A crumbling complex in the middle of lush grassland, the site features traditional Khmer architecture (Angkor Wat–style), headless Buddha statues, chedis (Buddhist stupas), and faded mural paintings that roll through different courtyards and chambers (or what’s left of them). Although this is highly popular among local and international tourists, the ruins feel charged with an almost mystic energy." - Marianna Cerini