If you are traveling to Berlin, be sure to take advantage of the new Berlin Welcome card that has lots of added features and enhancements. With the Berlin Welcome Card, you get (per adult):

Unlimited travel within the public transport system for 72 hours from validation (fare zone AB)
Free admission to all open museums of the Museum Island (excl. special exhibitions) for 3 days
Berlin Welcome Card Museumsinsel leaflet
Special supplement to the Berlin Welcome Card Guide
Multilingual information on the museums and exhibitions of the Museum Island ( D/EN/ES/F/IT)
Handy pocket-format guide to Berlin
City map of Berlin and Potsdam
Easy-to-read public transport map

Reductions of up to 50 % or free entry to more than 150 top sights and cultural highlights, including:
• City tours, guided tours
• Bike tours and boat tours
• Museums, top attractions, shows and theatres
• Restaurants, eateries, clubs, discos, dance venues
• Plus souvenirs galore

Museum Island, a UNESCO-World heritage sight in the center of Berlin, offers an important architectural and cultural ensemble of museums.
• Pergamonmuseum
• Altes Museum
• Bode-Museum
• Alte Nationalgalerie
• Neues Museum

The Berlin Welcome Card is priced at € 31.50 and is available through your travel agent, the Berlin Tourist Bureau or Berlin Welcome Card