File:Initial Hardmode map.png

Summary
An example map just after the Wall of Flesh is defeated. Note the "V" shape of the Corruption on the right, and the Underground Hallow on the left.

Pre-hardmode features
As this file is linked on world, a brief description of the features may help. First, note the layers of increasing stone towards the bottom, ending in the lava of "Hell" (Underworld) and abandoned houses. Next, note the biomes: ocean and forest, jungle (including Lihazard temple), corrupted chasm, snow, desert, the dungeon entrance, and finally another forest/ocean on the end. Apart from that of the special biomes and structures, there are some floating islands, Bee Hives, and white Spider Nests. No noticeable pyramid is present.