Our first major stop is Wat Phra Si Sanphet, widely considered the holiest and most significant temple of the Ayutthaya period. This was the equivalent of Bangkok’s Temple of the Emerald Buddha, but with a unique twist: it was located within the royal palace grounds and had no resident monks. Instead, it was used exclusively for royal ceremonies and to house the remains of the monarchy. The three iconic bell-shaped towers, or chedis, that dominate the skyline here are the final resting places for three Ayutthayan kings: King Borommatrailokkanat, King Ramathibodi the Second, and King Borommaracha the Fourth. Once, a massive bronze Buddha statue covered in more than 300 kilograms of gold stood here, known as the Phra Si Sanphetdayan. Sadly, during the invasion of 1767, the golden skin was melted down by invaders, leaving only the stone and brick skeletons you see today. As you walk among these foundations, notice the symmetry and scale, which served as the primary model for the urban planning of modern-day Bangkok.