Spider Wall

Spider Walls are a background Wall found in naturally-formed Spider Caves. It can be destroyed with a Hammer, however it will not drop any item, nor can it be crafted on the. Therefore it cannot be obtained. In the of Terraria, it can be crafted.

Unlike other naturally occurring walls, it can create Cobwebs over time, allowing it to be used to farm Silk.

Trivia

 * On the background texture of the wall there seems to be a bound NPC. This could be a reference to the actual Lost Girl, or more likely the Stylist NPC as she will initially spawn (bound before rescue) within a Spider Cave.

History
Mur d'araignées 蜘蛛墙