Ever been to a museum and seen big displays of life in miniature? Now it's time to create your own! Make a miniature world and build your own diorama! Build a tiny model of your house, your dream bedroom, or invent a new planet! Use Legos, action figures, or just create your own characters from cardboard. Find ways to challenge yourself and take it to the next level of creativity, imagination, and even your sense of humor if you can! Craft a story around this tiny world in your diorama and document it by taking a picture or give us a quick video tour.

As always, be safe and get a parent's permission before building. Once you've filmed it, work with your parents to share it with us!

Campers stay busy this summer with five different build challenges Mark Rober issues in camp videos. Mark Rober picks a winner for each camp challenge—they'll win a prize pack. At the end of summer, one lucky winner wins the grand prize: a Platinum Ticket to CrunchLabs and a spot in the final video with Mark.

Campers, here's how it works.

1. Build: Build the challenge project.

2. Show: Make a video or take a photo showing your project to enter the contest.

3. Enter: Enter using the form below for a chance to win the challenge contest.