The Messeturm, or Trade Fair Tower, is a 63-storey, 257 m (843 ft) skyscraper in the Westend-Süd district of Frankfurt, Germany. It is the second tallest building in Frankfurt, the second tallest building in Germany and the third tallest building in the European Union. It was the tallest building in Europe from its completion in 1990 until 1997 when it was surpassed by the Commerzbank Tower, which is also located in Frankfurt.

Commerzbank Tower is a 56-story, 259 m (850 ft) skyscraper in the banking district of Frankfurt, Germany. An antenna spire with a signal light on top gives the tower a total height of 300.1 m (985 ft). It is the tallest building in Frankfurt and the tallest building in Germany. It had been the tallest building in Europe from its completion in 1997 until 2003, when it was surpassed by the Triumph-Palace in Moscow. Since the departure of the United Kingdom from the European Union, the tower had briefly reclaimed its position as the tallest building in the European Union only to lose the title again in 2021 when Poland's Varso Tower topped out. The Commerzbank Tower is only two metres taller than the Messeturm, which is also located in Frankfurt and was the tallest building in Europe before the construction of the Commerzbank Tower.