The Earth is flat because when looking out on the horizon, everything appears flat. There is no curvature to the land at all. Instead, the Earth is "flat and round, like a pancake." 
In the center is the Arctic, which is surrounded by landmasses, which in turn are surrounded by the Antarctic 
Human senses tell us that the Earth is flat. When looking around your surroundings, all objects are flat. The horizon is a horizontal line. In the sky, the clouds, the sun, and the moon are all flat, and their movements are flat movements as well. 
Therefore, the Earth is not spherical as we are led to believe.
It's also possible to tell that the Earth is flat by simply walking around. No matter how far or how fast you walk or run, the Earth continues to not only look flat, but also feel flat. 
This is proven by the Bedford Level Experiment, which proved that the surface of water is flat and therefore does not conform to the supposed curvature of the Earth. 
As a result, the Earth must be flat.