archetectural feats. WIth more than six UNESCO recognized constructions in Sri lanka, our traditional architecture is filled with wonders, and many of the constructions are still under-utilized in the current sectors. Before we dive into the crux of this essay, let's forcus on the history,scientific marvels and archievements in the three eras of sri lankan architecture, namely ancient, colomial, and post-indepencc. Ancient sri lankan architecture. The ancient srilankan architecture has been shaped by a