What's this?
A beach.
What's this?
A desert.
What's this?
A river.
What's this?
A mountain.
What's this?
A forest.
What's this?
A bridge.
What's this?
A volcano.
What's this?
A pond.
What's this?
A waterfall.
What's this?
A stream.
What's this?
A valley.