Pick the taller landmark and confirm. Compare height to the top of the structure, including a spire or antenna where present. The reveal shows both measurements.
Worked example
If one structure reaches 240 m and another 310 m under the displayed definition, the second is taller. A roof, viewing platform or surrounding hill can give a different comparison from the top of the structure.
Examples illustrate the rules. They are not real country statistics or answers to your round.
What to watch for
The game compares structure-top height, including a spire or antenna where present. It does not compare elevation above sea level. Check the revealed measurement and source rather than judging the illustration's scale.