The best cheeseburger in Berlin costs less than 5. Burgermeister is mandatory in town when you're craving for a basic and delicious to the bits chesseburger. 

KINDL- Center for Contemporary Art. It’s an old brewery that has been transformed into an Art Center, … both galleries often have unusual, beautiful and thought provoking shows.

It is an English language bookstore centering on non-western, diasporic, and queer perspectives. Many many many rare and special books carefully selected by Siddhartha Lokanandi that is the soul of this place! Check it, it is unforgettable :)

The is an old geisterbahnhof, or railway station, in the Prenzlauer Berg district of Berlin, Germany. It is served by the Berlin S-Bahn and the M13 line of the Berlin Straßenbahn. The station opened on October 1, 1935, at the junction of the Nordbahn line from Berlin to Stralsund with the railway line to Szczecin where the eponymous street named after Bornholm Island crossed the tracks. As Bornholmer Straße station lay right at the Berlin Wall it was closed on August 13, 1961, turning it into one of Berlin's ghost stations, passed by eastern and western S-Bahn trains without stopping. After German reunification Bornholmer Straße was reopened on December 22, 1990. Today, you can still go there to see remnants of the wall, and where people flooded in when the wall came down in 1989. (In the evening of November 9, 1989, thousands of East Berliners and GDR citizens assembled at the bridge demanding entry to West Berlin. At 9.20 p.m. local guards were the first to open the checkpoint and allow people passing through freely to West Berlin, where they were greeted enthusiastically. The event marked the commencement of the fall of the Berlin Wall.).

My favorite lake to visit during the warmest months. It's located in the southwestern part of Berlin and it's reacheable by public transportation, just around 40min from the city center.