Drum Tower, originally built in 1782 in the reign of King Rama I, it is a three-story tower featuring a wooden structure with red paint of which, the design replicated the style of the tower in Ayutthaya period.
Each story houses a big drum (with given name that rhymes with one another in either forward or backward reading) which gives different sound to convey a different message.
The first drum is to signal dawn and dusk.
The second drum is to signal a fire alarm and
The third drum is to signal warning when invaders attack the city which, according to the record, was never used for, around that time, peaceful era had started to seep into Siam.
In the reign of King Rama III, the tower rooftop was modified from Thai style of ‘mondop’ to Chinese style. Later, it was changed back to its original form in the reign of King Rama IV.
King Rama V had the tower demolished to give way for the construction of Chao Chet Park.
A new tower of the same style was rebuilt in 1982 in the occasion of 200th Anniversary of Bangkok.
At present, this Drum Tower is sited on Sanum Chai Road in Pra Borom Maha Ratchawung District close to Wat Poh and the Territorial Defense Command.