Flat earth theory is neither officially nor unofficially associated with any religion. Throughout the ages various religious institutions have championed a flat earth model for the world. Unfortunately this leaves us with the vestigial thought that flat earth theory and religions are symbiotic. They are not, even though many religions today, both mainstream and otherwise, still teach its followers that the world is flat. While they are not incorrect, believing in a flat earth isn't contingent upon believing in a deity or being a part of any religion.
78) From Anchorage, Alaska at an elevation of 102 feet, on clear days Mount Foraker can be seen with the naked eye 120 miles away. If Earth were a ball 25,000 miles in circumference, Mount Foraker’s 17,400 summit should be leaning back away from the observer covered by 7,719 feet of curved Earth. In reality, however, the entire mountain can be quite easily seen standing straight from base to summit.