r/BeAmazed - A selfie at the top of Mount Everest disproves the flat earth theory.
https://www.reddit.com/r/BeAmazed/comments/abmnu8/a_selfie_at_the_top_of_mount_everest_disproves/
r/EarthPorn - An early morning Fannette Island - Lake Tahoe [OC] [1123x1828]
https://www.reddit.com/r/EarthPorn/comments/aaq8yx/an_early_morning_fannette_island_lake_tahoe_oc/
r/MapPorn - Hundred Largest Islands of the World
https://www.reddit.com/r/MapPorn/comments/a6423t/hundred_largest_islands_of_the_world/
r/geology - Cuba, by Erwin Reizs [2948x1941]
https://www.reddit.com/r/geology/comments/ab3usa/cuba_by_erwin_reizs_2948x1941/