The Colossi of Memnon stood on the edge of the Nile floodplain and their pedestals are regularly reached by the river. Source: Reddit (2019). July 3, 2020 960 × 720 The Colossi of Memnon stood on the edge of the Nile floodplain and their pedestals are regularly reached by the river. Source: Reddit (2019). The Colossi of Memnon stood on the edge of the Nile floodplain and their pedestals are regularly reached by the river. Source: Reddit (2019).