How do you remove shower tile without damaging walls?

What is the easiest way to remove tile from a bathroom wall?

Tiles installed with thinset or another tile adhesive often require more work to remove them. A wide-blade putty knife is helpful in prying the tiles loose. Once those tiles loosen, pry them off with a putty knife. The only way to remove tiles set in mortar may be to break them and then scrape off the mortar bed.