White, black, red, and green are the most common wire colors you'll see in a home — and blue wires must be treated with caution. Here's why.

Red paint may not be the only way to signify an electrical power line, cables and more. Some areas may be marked with other ...

Seeing blue dots, red Xs, orange circles and purple bands on trees and wondering what they mean? Here's what we found out about those painted trees.