horizontal
The horizon is the line that appears to separate the land or water from the sky when viewed from a specific point.
The Horizon line
horizon line
Horizon line. :)
horizon
Horizon line :P
The Horizon.
The Horizon.
The horizon. It is a imaginary line where land and sky appear to meet.
The Horizon
The horizon (or skyline) is the apparent line that separates earth from sky, the line that divides all visible directions into two categories:
A line that separates two places is a boundary line.