On my first day I took in a free walking tour. It gave me some history and let me see lots of cool spots, some that I wanted to come back to.
First we started in front of the Hotel Adlon. A very famous one for the celebraties that have stayed in it. For example, Michael Jackson, when he dangled a baby over a balcony…Hotel Aldon that’s the place.
The government building, the round one is made up of several levels that circle the outer wall. It is designed so that the public can stand on the upper floors and watch the council meetings. Also it is representative that if the government officials were to look up they would be reminded that they are beneath the people and work to serve the people.
Then we passed through a park where we saw the Goethe statue.
From there we walked through the Holocaust memorial called the Field of Stalae. It is a very unique memorial because even the artist cannot define its meaning. It is made up of around 2700 concrete slabs each positioned at a slightly different height or angle. The paths between them are uneven sloping up or down, narrowing or widening, bumpy and smooth. 
Next we walked through a parking lot that sits on top of the bunker in which Hitler is believed to have died. Within 36hrs after marrying his long-time girlfriend; Hitler killed himself, his new wife and his dog. There bodies were then burned and buried. In the after math of the war a soldier found the charred remains of a man, woman and dog, who after dental testing was apparently confirmed to be Hitler.
The Old Socialist Government Building with a large propaganda mural, which the people soon discovered to be an inaccurate depiction of lives under soviet rule.
An undisturbed section of the Berlin Wall.
Gendarmenmarkt, this square has a partially French name because some Frenchmen built a cathedral there, after the German people complained about it the king turned around and built an identical one at the opposit end of the square. The square is also home to the Konzerthaus (concert hall).
Next we saw the Humboldt Universitat and the Old Library which are in the square where all the books were burned on … day.
At one edge of the square there is a glass window in the ground, if you stand back a couple feet and look through the glass then sunken into the ground you can see a wall of bookshelves in all white.
Next the TV tower, built during the soviet rule, that happens to be the tallest building in all Germany.
Finally we where taken to the museum island and shown the Lust Garden. Lust meaning pleasure garden, a place where the sun always shines and there are angel statues and butterflies.
That evening I visited with some girls from the tour and we played cards over cocktails.