Watch: Caterpillars transform into butterflies in this incredible time-lapse. | National Geographic

A trip back in time with the iconic Cat D2 vintage dozer! Over the last century, Caterpillar has grown with our customers to help build a better, more sustainable world. We’ve changed together as the world has changed: creating, building, problem-solving, testing, innovating, servicing, and improving. At our three Demonstration and Learning Centers, we're celebrating the next 100 years by adding a few unique, touches to our demonstrations that take you back to the early days. Here's a sneak peek