1. St. Mary’s Basilica, also known as Kościól Mariacki in Polish, is a Gothic church located in the center of Krakow, Poland. It was built in the 14th century and is one of the most recognizable landmarks in the city. The church is especially known for its two towers, one taller than the other, which are not identical and have become a symbol of Krakow.

Inside the church, visitors can see the extraordinary stained-glass windows, the largest of which dates back to the 14th century. There is also a magnificent altar of Veit Stoss, which was carved out of wood in the 15th century. The Basilica has two naves, each with its own set of chapels, and together they form an impressive space.

One interesting fact about the Basilica is that every hour, a famous trumpet call known as the hejnał mariacki is played from the taller of the two towers. The tune is abruptly cut off, which is said to commemorate a 13th-century trumpeter who was shot through the throat while sounding the alarm during a Mongol invasion.

2. The Basilica is open every day from 11 am to 6 pm. However, there may be special hours for religious services. The phone number for St. Mary’s Basilica is +48 12 422 05 21.

3. Admission to the Basilica is free, but a ticket is required to enter the altar of Veit Stoss. The cost of the ticket is 10 PLN (about 2.50 USD) for adults and 5 PLN (about 1.25 USD) for students. Tickets can be purchased at the entrance to the altar.