1. The Rynek Glowny, or Main Market Square, is located in the heart of Krakow’s Old Town and is one of the largest medieval town squares in Europe. It dates back to the 13th century and is surrounded by historic buildings, including the Cloth Hall and St. Mary’s Basilica. The square also features a number of cafes, restaurants, and souvenir shops, as well as street performers and musicians. Interesting facts about the square include: it was the site of political rallies during the communist era in Poland, it was used as a filming location for the movie \"Schindler’s List,\" and it is home to a bugle call, played every hour from the tower of St. Mary’s Basilica.

2. The square is open 24 hours a day, although some shops and restaurants may have varying hours. The phone number for tourist information about the square is +48 12 422 39 99.

3. There is no entrance fee for visiting the square. The easiest way to reach the square is by walking from the nearby train or bus station, or by taking a taxi. There are also several tram lines that stop near the square.