  A new geometry, called General geometry, is constructed. It is proven that
its the most simplest special case is geometry underlying Electromagnetism.
Another special case is Riemannian geometry. Action for electromagnetic field
and Maxwell equations are derived from curvature function of geometry
underlying Electromagnetism. It is shown that equation of motion for a particle
interacting with electromagnetic field coincides exactly with equation for
geodesics of geometry underlying Electromagnetism. It is also shown that
Electromagnetism can not be geometrized in the framework of Riemannian
geometry. Using General Geometry we propose a unified model of electromagnetism
and gravitation which reproduces Electromagnetism and Gravitation and predicts
that electromagnetic field is a source for gravitational field. This theory is
formulated in four dimensional spacetime and does not contain additional
fields.
