What's this?
A mountain
What's this?
The sea
What's this?
A river
What's this?
A country
What's this?
A leaf
What's this?
A bridge
What's this?
A boat
What's this?
A bug
What's this?
The world
What's this?
The sky
What's this?
A city
What's this?
An aeroplane
What's this?
Grass
What's this?
A cloud
What's this?
A road
What's this?
A tree
What's this?
A rock