What goes through cities and fields but never moves?

How to think about it

1. If it never moves, it is not a vehicle. It must be a long, fixed thing that stretches across the land.
2. Rivers, railways, roads and power lines all run through cities and fields.
3. A river moves, since its water flows, so set it aside.
4. A road goes through everything on the map and never shifts an inch.

Why “a road” is the answer

A road passes through cities and open fields along its whole length, yet the pavement never goes anywhere. The riddle plays on the phrase “goes through”, which here means “extends across” rather than “travels”. Railways work on the same logic, which is why they are a common alternative.

Common wrong answers

• A river. A river runs through cities and fields, but its water is always moving.
• A train. A train goes through cities and fields precisely because it moves.