Heart Pillars are objects that appear in Super Paper Mario.
Heart Pillars are tall, white pillars with holes of hearts in them. The Pure Hearts must be placed within them in order to open the door to the next world that contains more Pure Hearts. There are eight Heart Pillars throughout the game, the same number as Pure Hearts. There are some Heart Pillars located in Flipside while the others are located in Flopside. Getting to a Heart Pillar usually requires the powers of the recently acquired hero or Pixl.