after the sack of ayuthaya and the fall of the ayuthaya empire to the burmese in the 17th century. the present Chakri Dynasty became the leader of thailand and to defend the new capital of bangkok from invasions from the burmese and the western powers with an eye on the them Siam, they built stone walls and 14 forts around bangkok and at the present, only two forts are still standing, the Makkasan and the Phra Sumen Forts. The Makkasan fort was built in 1783 to defend against potential naval invasions and sits just beside the Golden Mount Temple, also known as Wat Sisaket.
opens: 7:00 am to 10:00 pm everyday
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Mahakan Fort is one of the only 2 remaining forts built during the reign of King Rama I. Originally the city was moated and walled with 14 forts at intervals along it. The moat was formed by a canal dug at a distance of about two kilometres from the Royal Palace, leaving the river to the north of the city and rejoining it to the south. It is 7.2 kilometres long, and it is today called Klong Bang Lamphu and Khlong Ong Ang. Walls were constructed along the inner side of this canal, being 3.6 metres high and 2.7 metres thick.
Part of the remaining old city wall is still intact here. The old wall runs from the fort for about 200 m along Maha Chai Road and the old gateway is still there.
The second aspect is that there is an old community that is still living within the 40 m strip of land between the wall and the canal! Beyond a dividing wall in the small park and stretching for the next 200 m, is the old Fort Mahakarn community. There is currently a long running impasse between the community and the Bangkok authorities who originally wanted to create a public park but who may now be looking at developing the area into a village of vintage houses.