21173 LEGO® Minecraft™ - The Sky Tower - 565 PiecesLEGO Minecraft The Sky Tower (21173) is filled with authentic action and diverse environments that kids with a passion for Minecraft can reconfigure again and again for endless adventures in the clouds. Sky high Minecraft creativityKids use cool, authentic Minecraft features to fly into the sky and build a floating blacksmiths house, a soaring tower and a garden island. The play possibilities range from growing vegetables to battling flying phantoms.