Si Satchanalai Historical Park is an archaeological site located in the Sukhothai Province of Thailand. It is a UNESCO World Heritage Site and is part of the larger Sukhothai Historical Park. Si Satchanalai served as the second capital of the Sukhothai Kingdom from the mid-13th century to the mid-15th century.

The park covers an area of over 700 acres and features the ruins of ancient temples, stupas, and other structures. The park is divided into five zones, each with its own unique features and structures.

Some of the most impressive structures in the park include Wat Chang Lom, which features a large bell-shaped chedi (stupa) surrounded by 36 elephant statues, and Wat Nang Phaya, which features a beautiful Buddha image.

Visitors can explore the park on foot or by bicycle. Guided tours are also available. The park is open daily from 8:30 am to 4:30 pm, and admission fees apply.

Si Satchanalai Historical Park offers a unique glimpse into the history and culture of Thailand during the Sukhothai Kingdom. With its stunning architecture, beautiful landscapes, and rich history, the park is a must-visit destination for anyone interested in Thailand's ancient past.