Travel about 15 minutes to Rattanakosin Historical Island by car. Visit the Grand Palace, the most recognized structure in Bangkok, which King Rama I, the city's founder, constructed in 1782.

Every building in the complex is a work of art, most notably the royal chapel of Temple of the Emerald Buddha, which houses the most revered Buddha Image in Thailand. Only those who are adequately attired may enter.

Observe the enormous Reclining Buddha at Wat Pho, one of the most significant Temples in Bangkok. In addition to holding the world's largest Reclining Buddha, the temple is renowned as the premier school for traditional Thai massage.

Drive for about 1.5 hours to Ayutthaya then explore the 1350-founded Historic City of Ayutthaya after lunch. Visit Wat Phra Sri Sanphet, the emblematic temple of Ayutthaya Historical Park, which features three bell-shaped stupas on a raised platform. It was the most significant temple in Ayutthaya and a royal temple without a resident monk.

Continue to the neighboring Wat Mahathat, famous for the Buddha's head entangled with the roots of the Bodhi Tree. Wat Mahathat, also known as the Monastery of the Great Relic, was one of the largest temple complexes on the island of Ayutthaya, serving as the Royal Temple's religious center and housing Buddha's relics. It was also the residence of the city's supreme patriarch.

Proceed to the riverside temple of Wat Chaiwattanaram. The temple, commissioned in 1630 by King Prasat Thong in the conventional style with Khmer elements, has been identified by cultural historians as the edifice most representative of Buddhism's influence on Thai society. An opportunity to taste Ayutthaya’s famous sweet snack “Roti Saimai”, cotton candy crepe, which are well-known amount locals and tourists, before heading back to your hotel in Bangkok.(1.5 hours drive)