We stopped at the port of Rostock which is actually about 3 hours away from Berlin. Our excursion was with TJ Travel. Evidently they contract with another company for pickup at the pier. Someone was holding a sign with TJ travel as well as other names, and she led us all to the same motor coach. This coach dropped off two people for a personal guided tour of one of the concentration camps and was scheduled to drop off another couple and their luggage in the city.
The motor coach was comfortable and had wifi, so I caught up on my emails, watched the countryside, and napped a little. We made one stop for restrooms and snacks along the way. That stop was much like an American truck stop.
We picked up our guide and he pointed out Berlin’s landmarks and famous buildings from inside the motor coach.
House of the President. The president is the “face of Germany” and has no real power
We got out of the motor coach and started our walking tour near the House of German Parliament….
which is beside modern government buildings,…
…and near the Chancellor’s building.
Brandenburg Gate. At one time there were 18 gates into Berlin. This is the only remaining one.
US Embassy
Hotel where Michael Jackson dangled the baby out of the window
The flag of Berlin – the Bear.
Memorial to Murdered Jews. The blocks are all the same width but different heights and the ground dips and rises. 
For lunch, we made a fast food stop. This restaurant had a wide mix of food. We ordered schnitzel and Bratwurst.
An Exhibition Building which still bears the marks of gunfire
The Wall.
There were actually two walls with a “kill zone” between them. Sometimes the inside wall was part of a building like the building on the left. Notice the line in the road. There are lines throughout Berlin showing where the wall once stood.
Checkpoint Charlie. There were several checkpoints in Germany during the time of the Berlin Wall. The military alphabet is Alpha, Beta, Charlie, etc…. Checkpoint Charlie just means it was the third checkpoint. There was a famous standoff here between the US and Russian forces during the cold war. If things had not ended peacefully, we could be studying a whole different history. The original checkpoint is gone. This is a replica, and tourists line up to pay to get photos with fake soldiers. Notice that Checkpoint Charlie is currently flanked by KFC and McDonalds.
Nearby, there is a wall of historical photos.
The German Concert House is flanked by a French Cathedral on one side and a German Cathedral on the other. Both cathedrals are museums now.
I was able to find a post box near the Concert Hall stop. 
East Side Gallery – This section of the Berlin wall stretches 1.3 kilometers. Artists were invited to paint murals on it.
The Ampelmann – The walk and don’t walk symbols have created an entire line of clothing and souvenir items. Ampelmann stores can be found throughout Berlin.
Statue of Freidrich the Great. One of the few rulers who was called, “the great” during his lifetime.
This square is where Nazi book burning took place. There is a memorial below the street. A plexiglass cover allows visitors to view it. It is a row of empty book cases.
Memorial to the Victims of War and Tyranny
Museums Island – This diagram shows the location of all the museums on the island. The Berlin Cathedral is the White domed building in this diagram. The green space and fountain in front of it and the first museum in the group are in my pictures below this diagram.
Hitler stood May 1st every year on these entrance steps to give speeches in front of thousands of people.
Berlin Cathedral (an operating cathedral) is also located on Museum Island.
This is the Victory Column that was built to commemorate the Prussian victory at the Danish-Prussian war. Americans gave it the nickname, “Chick on a Stick.”
Our guide told us that at one time in Germany’s history, crosses were removed from all buildings. This Radio tower was built, and when the sun hits it just right it looks like a cross. People called this, “The Pope’s Revenge.”
Charlottenburg Palace
We dropped off our tour guide at the palace, and the motor coach driver took us back to the ship. Fortunately, since it was the weekend, traffic was not bad and we made it back in just 2.5 hours.
Our next port will be the debarkation port: Copenhagen, Denmark.