That’s a Big Caterpillar

This smart-looking piece of equipment was made by Marek Markiewicz (aka M_longer), and is actually in minifig scale. The real Caterpillar 24M stretches over 46 feet long, and has a 24 foot wide blade! Marek’s Lego version is equally impressive, though, featuring a pneumatically operated blade and rear ripper, and functioning steering and articulation. Marek has even made a cool video to showcase the moving parts in action.