Since the beginning of art history, Hell has been interpreted in paintings, photographs, literature, and philosophy. The various demons and underworld leaders are difficult to identify given the many different impressions artists have created. Although the inferno itself can be a fairly intimidating concept, pictures of Hell throughout history are even spookier than your darkest imagination.
As time has progressed, and art continues to change, modern interpretations of Hell have become even scarier, and often include pop culture references. The creepiest depictions of Hell might make you reconsider searching how to summon a demon, as it is unlikely you'll want to meet the beasts represented by these artists who you can find at DeviantArt.