1. Mauerpark is a popular park in Berlin that is located in the Prenzlauer Berg neighborhood. It covers an area of 15.3 hectares and is known for its vibrant atmosphere and diverse crowd. The park was once part of the former Berlin Wall, and visitors can still see a section of the wall that has been preserved.

Mauerpark is famous for its Sunday flea market, where visitors can find all kinds of vintage items, handmade crafts, and tasty street food. The park is also a popular spot for picnics, music performances, and street art. Visitors can enjoy the green space, which includes an amphitheater, basketball court, and a playground for children.

2. Mauerpark is open every day from 8 am to sunset. The park can be reached by public transportation, including the U-Bahn (Subway) and Tram. The phone number for the park is not available.

3. Admission to the park is free, and there is no entrance fee for the Sunday flea market. The park can be easily accessed by public transportation, with the U2 subway line stopping at Eberswalder Straße or the M10 tram stopping at Bernauer Straße. Bicycles can also be rented nearby.