if a place or a situation is hell on earth, it is extremely unpleasant.
Soldiers who survived the war in the jungle described it as hell on earth.
hell on earth
An awful or extremely unpleasant situation or circumstance. This place has been hell on earth ever since the new manager took over.Following the military coup, inhabitants of the region have described it as a hell on earth.
a ˌhell on ˈearth
a place or situation that is extremely bad or unpleasant: Life for the ordinary soldiers was hell on earth. OPPOSITE: a heaven on earth