Cliffs are steep changes in elevation. In worldbuilding cliffs may be sites of cliffside pathways, cliffside towns, or simply exist as a formidable terrain element. They may be sites of scaffolding and cranes. Cliffs can be areas that mark the boundaries between countries or between different regions. In narratives, cliffs are often sites where characters are placed into situations from which there may be no escape (particularly so at the top edge of the cliff). There may be jagged rocks below.