pom phra sumen fort ,the white fortress is sky-high, and park in bangkok, thailand. built to protect the capital from invasions

18th ancient antique architecture art asia asian attraction bangkok blue brick building built capital castle century chai city clear clouds construction culture end exterior famous fort fortress garden heritage historical history invasions landmark old outdoor park phra place pom prakan protect roof royal santi sky skyhigh structure sumen thai thailand tourism tourist tower town traditional travel vintage wall war white