Pylons

Pylons are furniture items. They allow a player to teleport to any other pylon with the following restrictions:
 * Pylons can only be used when there are 2 or more NPCs nearby.
 * Pylons only function when in the matching biome.
 * Only one of each biome Pylon may be placed per world.
 * They cannot be used during Boss battles or invasions.

Pylons are sold by NPC vendors, and have interactions with the Town mechanic.

Cavern Pylon

 * Can be bought from any NPC when living in the Cavern layer.

Forest Pylon

 * Can be bought from any NPC when in a Forest.

Snow Pylon
Can be bought from any NPC in the Snow Biome.

Jungle Pylon

 * Can be bought from any NPC when living in a Jungle.

Desert Pylon

 * Can be bought from any NPC when living in a Desert.

Ocean Pylon

 * Can be bought from any NPC when living in the Ocean.

Hallow Pylon

 * Can be bought from any NPC when living in the Hallow.