This stupa plays a key role in the history of the palace. Before ascending the throne, the then Crown Prince Vajiravudh (later H. M. King Rama VI 1910 - 1925) visited the Nahn Pathom pagoda and decided to build this residence as his retreat to enable him to visit the pagoda regularly. It took nine year to complete the project. Past its prime, the palace lost its shine and the park was abandonned. It was only in 2003 that it was given a new lease of life and was reopened to the public.