Moon Pipe

A Moon Pipe is a special kind of Warp Pipe that appears in Super Mario Odyssey. They are functionally identical to regular Warp Pipes and always lead to sub-levels. Moon Pipes appear in a kingdom after its Moon Rock has been activated. They also appear on the Dark Side of the Moon after defeating the Broodals and RoboBrood at Rabbit Ridge Tower, where they lead to alternate versions of previous sub-levels where Mario must capture Yoshi and eat berries to obtain the Power Moons within.

Trivia

 * Even in Assist Mode, some of the sub-levels via Moon Pipes won't prevent Mario from falling into bottomless pits and getting burned by rising lava.