A big part of my business is inspections. Whether visual with a regular camera or thermal with the IR camera, a drone can often get to places that people cannot.
Today's example comes from a drainage ditch. While not quite Cirque d'Soleil in excitement factor, flying this ditch for inspection is worlds faster and more efficient that having a team of people walk each side. And my drone doesn't get stuck in the mud out in the middle of the field.
Other inspections I've done include concrete 150' above ground, windows to check for the seal integrity between the double panes, roofs to look for storm damage and thermal inspections of electrical equipment to look for signs of inefficiency or failure.