Frankfurt's skyline wouldn't be the same without the Main Tower, one of the tallest and most distinctive high-rises in town. A great place to get a feel for ‘Mainhattan’ is 200m above street level, on the observation platform reached by lift in a mere 45 seconds. Be prepared for airport-type security. It closes during thunderstorms.
You can also take in the cityscape from the 53rd-floor restaurant , or the adjacent cocktail lounge , where the minimum order is €25 (reservations are a good idea if you're planning on arriving after 6pm). The dress code for both is ‘business casual’.