It is important for you to memorise the location of all landmarks on the map

Excellent!

When you click NEXT you will be given two landmarks, for example:

When you have recalled their position on the map, press the SPACEBAR, or tap the screen if using a mobile device

In a moment, two landmarks from the map will appear on the screen.
In your mind, locate the position of these two landmarks on the map that you have memorised.
When you have recalled their position on the map, press the SPACEBAR, or tap the screen if using a mobile device.
Kosslyn