Frankfurt is full of skyscrapers. According to the wikipedia page (which does not seem to have been updated since 2011) Germany has 13 skyscrapers. 12 of those skyscrapers are in Frankfurt. Yes, 92% of the German skyscrapers are in Frankfurt. (Whether or not this remains to be true is a task for another blogger.)
So you’ll see a lot of them if you visit:


But Frankfurt has a lot more to offer the eyes than really tall buildings! Such as:

Statues that change as you walk past them:

And:

A curving hole in the “My Zeil Shopping Arcade“, which isn’t just cool on the outside, but curves into the mall:

I doubt that these pictures do it justice. Just go and see it!
And finally, a really cool thing that you have to see in person:

The best subway entrance ever.