The Phra Mondop is a major structure within the Wat Phra Kaew temple complex, also known as the Temple of the Emerald Buddha, in the Grand Palace of Bangkok. It serves as a library (Ho Trai) and houses the sacred Buddhist scriptures, the Tripitaka. Originally built by King Rama I, the Phra Mondop was rebuilt after a fire. Its architecture is characterized by a square foundation and a pyramidal, multi-tiered roof with a high, pointed peak, a style known as mondop. The exterior walls are richly decorated with green mirror mosaics and gold medallions depicting praying devas (deities). Inside is an elaborately designed cabinet with mother-of-pearl inlay that contains the complete 84,000 chapters of the Tripitaka. 
Another example of a Phra Mondop can be found in the Wat Pho temple, where it also serves as a library for Buddhist scriptures. The architecture of the Phra Mondop in Wat Pho is similar to that of Wat Phra Kaew, with ornate exterior walls and ornate details. 
The Phra Mondop are generally closed to visitors to protect the delicate scriptures. Nevertheless, the buildings are impressive from the outside and a testament to Thai architecture and religious heritage. A visit to Wat Phra Kaew and Wat Pho offers the opportunity to admire these ornate structures and learn more about Thailand's Buddhist culture.