Getting around Berlin is easy, just use their public transportation.
Berlin's convenient interconnected three-zone system (ABC) requires
you to purchase one ticket, and allows you to hop on from bus to
underground (U-Bahn) to surface rail (S-Bahn) to tram with just
one ticket. Berlin is divided into transport zones A, B and C, but
for most travel purposes A and B will be sufficient. There is an
English translation on ticket vending machines at each station,
so no worries when it comes to understanding what ticket is best
for you. Public transportation is easy and cheap, and you can just
relax and enjoy the view as you arrive to your final destination.