Whether they're trucks, cars, boats, planes or the huge haulers that carry goods around the world every day, machines are fascinating. Here, you'll find out all about these amazing machines, and find answers to questions like 'how big is the world's tallest monster truck?' You'll find out all about the incredible technology that has helped humans to venture into space, as well as out-there inventions like drones and jet packs. Get ready for a ride through some of the world's most mega machines! Featuring: Incredible cars and bikes - From the greatest cars on earth to the smallest motorbike Mega giants - Be amazed by these massive machines World's fastest vehicles - Blink and you'll miss these speedy numbers Extreme engineering - Marvels of scientific innovation that have changed their industries