Admission fees are 30 THB for a Thai, and 100 THB for a non Thai. Open from 8 am until 4 pm.Originally built by Ayutthayan King Prasat Thong in 1632 but abandoned after the sack of Ayutthaya in 1767, the site was partially restored by King Mongkut (Rama IV) in the 1850s. The site as it stands today, however, is largely the work of King Chulalongkorn (Rama V), who expanded the area into a Versaillesque garden filled with European-style buildings in 1872-1889. Last restored in 2001, the palace and its grounds are maintained in immaculate shape and well worth a visit.
The entire place is rather big. So, if you are with a couple of people, or with elderly people, there are these little thingys available for rent.
Main buildings in the "outside" zone are...
Exhibition Hall (Saphakhan Ratchaprayun)
Built in year 1879.
Ho Hem Monthian Tevaraj
Built in year 1880.
Divine Seat of Personal Freedom (Aisawan Thiphya-At)
Built in year 1876.
Excellent and Shining Heavenly Abode (Warophat Phiman)
Built in year 1876. No photos allowed inside this building. The Royal Family stay in this building whenever they come to visit Bang Pa-In Palace. All female visitors have to wear a skirt. If wearing pants, there are sarongs you can borrow there.
In the "inside" zone, this's where the former King and Queens, Princesses, etc stayed.
Between the "inside" and "outside" zone, they were connected by a bridge. Along this bridge, no one could look into the "inside" zone, while the "inside" zone could look out.
Tevaraj Kanlai Gate
Uthayan Phumisathian
This was the most favourite building of King Rama V. Unfortunately, the whole building was damaged in a fire in year 1938. However, H.M.Queen Sirikit managed to have the building rebuilt in year 1994.
Sages' Lookout (Ho Withun Thasana)
Built in year 1881.
Heavenly Light (Wehart Chamrun)
Built in year 1889, by Chinese merchants for King Rama V.
Rajanusorn and Queen Sunanda Memorial
In year 1880, Queen Sunanda passed away in an accident while travelling by boat to Bang Pa-In Palace. King Rama V built a memorial to her.
Three years later, King Rama V then lost three children in one year.
Residence of H.M.Queen Sawang Vadhana
Residence of H.M. Queen Sukhumala Marasri
The whole place is neat. A nice day out near Bangkok indeed.