Known as ‘the smallest metropolis in the world’, Frankfurt am Main combines a relaxed atmosphere with a modern skyline made of chrome and glass. Germany’s biggest airport and busiest train station can be seen alongside historical buildings, and for some entertainment there are many theatre and cabaret shows on offer. You’ll find First Hair Clinic in a central location, just next to the old opera house and across the way from a stretch of parks. Bus, metro and train connections make it very easy to get to.