Rift Gateway

Rift Gateways are fairly rare, naturally spawning, structures that hold invisible Rifts linking to a random Dimensional Dungeon.

They can be found in any Biome of the Overworld or Mystcraft Age.

Walking through the two pillars will transport you to a Dimensional Dungeon. A Warp Door will be created on your arrival, allowing you to return to the Gateway you entered.

They will only transport you if you walk through them from East to West.