Link Camera to Spline Curve?

Is it possible to link the camera motion around a tall object like a building to rotate around following a self drawn curve path? I couldn’t figure it out.

Thanks,
Alldaron

https://www.blender.org/manual/animation/object_path.html
Follow path constraint https://www.blender.org/manual/rigging/constraints/relationship/follow_path.html

You can draw a path with the grease pencil and convertthat to a curve or just add a regular curve object