While there may be some debate among historians, Sukhothai is generally considered the birthplace of Thai culture. The sprawling Sukhothai Historical Park preserves what’s left of the first capital of Siam and makes for a leisurely day out biking through the ruins. The site features a series of crumbling monasteries, temples, stupas, palaces, and stunning Buddha statues as well as portions of the original city fortifications.
While not on the same scale as the Southeast Asian super-monuments of Bagan and Angkor Wat, Sukhothai is still quite impressive and rivals the grandeur of Ayutthaya. For its historical and cultural significance, Sukhothai has been declared a UNESCO World Heritage Site, and it’s definitely worth a day or two on the way north to Chiang Mai.