Describes underground areas including subways, bank vaults, and basement offices as well as the machines used to construct these places, dig tunnels, mine coal, and drill for oil.

Explains what a bulldozer can do, how its different parts work, and how the operator manipulates it from inside the cab.

Photographs and simple text present some of the different machines used in a large supermarket, including fork lifts, scales, pricing machines, and conveyor belts.

Photographs and simple text present some of the different machines used on farms, including tractors, cultivators, balers, and combine harvesters.

Whirr! A concrete mixer's drum spins round and round! Learn more about why these big machines never stop moving.

Briefly describes the parts of a dump truck and how it works.

In simple text, explains how garbage trucks work and what they do.

Buzz! A worker in a cherry picker cuts a power line high above the trees! Learn more about how cherry pickers work and what they are used for.

Describes the parts of a large earthmover, how they operate, and the work they do.