Although I've used the Frankfurt International Airport dozens of times, I rarely spent time in the city of Frankfurt.  I just added some photos I took during the Sept. 2006 visit.

I once took a train from Frankfurt to Köln (Cologne) to spend a day there, and on the return trip I took a leisurely boat ride up the Rhine from Koblenz to Mainz, near Frankfurt.  It was a very relaxing journey with great scenery.

I used to visit Darmstadt just outside of Frankfurt on business trips, and I often took a short train ride to Heidelberg to see the Schloss and the wonderfully vibrant city of Heidelberg.  I once enjoyed a pipe organ concert in Heiliggeistkirche (Church of the Holy Ghost).