Construction began in 1782. Bangkok's Royal Palace combines the pointed, gilded roofs characteristic of Thai architecture, symbolising spirituality, with more recent, Western-influenced elements that mark Thailand's openness to foreign powers and its desire for modernisation.
Here's a close-up of the base of a golden dome.

https://www.lelephant-voyageur.com/voyage-thailande/visiter-palais-royal-bangkok
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