Anywhere an imaginative audience could be persuaded to go

From Shakespeare The World as Stage by Bill Bryson.  Chapter 4 page 76.  

It was a time of rapid evolution for theatrical techniques. As Stanley Wells has written: “Plays became longer, more ambitious, more spectacular, more complex in construction, wider in emotional range, and better designed to show off the talents of their performers.” Acting styles became less bombastic. A greater naturalism emerged in the course of Shakespeare’s lifetime—much of which he helped to foster. Shakespeare and his contemporaries also enjoyed a good deal of latitude in subject and setting. Italian playwrights, following the classical Roman tradition, were required to set their plays around a town square. Shakespeare could place his action wherever he wished: on or in hillsides, forts, castles, battlefields, lonesome islands, enchanted dells, anywhere an imaginative audience could be persuaded to go.