Things that show the location of other objects

• Spelunker Potion — Shows treasure and ore.
• Metal Detector — Shows treasure and ore.
• Spelunker Glowstick and Spelunker Flare — Shows treasure and ore.
• Magic Lantern — Shows treasure.
• Hunter Potion — Shows enemies.
• Biome Sight Potion — Shows corrupted tiles.
• Dangersense Potion — Shows shows traps and other harmful things.
• Suspicious Looking Tentacle — Shows NPCs, enemies, treasure, and ore. Expert mode-exclusive, post-Moon Lord.
• Map viewers — 3rd party programs that show everything.