Here is the ultimate in accuracy. 200,000 prisms on an infinite plane, using POV-RAY, the ultimate in 3d "simulation"
The camera is 1.5 meters up, looking directly at the horizon. The prisms are 1 meter tall and 2 meters tall, respectively. The farthest cube is 200,000 meters away, being much smaller than a pixel. It still doesn't break the horizon.
note: POV-RAY doesn't have meters. It uses unnamed units. But, since the camera is 1.5 units above the ground, it can be assumed that a camera on a tripod could be 1.5 meters up. Thus, as defined, all other units are in meters.