The renovation of the building and its interior decoration work began in 2008.

On 9 March 2010, the exhibition was officially launched.  It invites the public to learn, appreciate and take pride in Thailand's artistic and cultural legacies of the Rattanakosin Era.

The building has two storeys, not including the mezzanine and the third floor at both ends of the building which serve as the viewpoints overlooking the city.  The building has 4,800 square metres of floor space.  Advanced technologies - such as presentation devices, models, four-dimensional multi-media technique, multi-touch and multi-media animation technologies- are used in presenting the exhibitions about Rattanakosin City through interactive self-learning devices.  The content is divided into nine topics in nine halls (In phase one of the project, only seven halls will be open to the public.   All nine halls will be open to the public in 2011).

Besides the nine exhibition halls, the building also has a 300-square-meter Event Hall on the ground floor for artistic and cultural events organized by educational institutions and private agencies.  The building also has a library, a souvenir shop and a coffee shop.