1. The Warsaw Royal Castle, also known as Zamek Królewski, is a former residence of the Polish monarchs that dates back to the 14th century. It was reconstructed after being heavily damaged during World War II and later become a UNESCO World Heritage Site.

The castle has 300 rooms and galleries, including the Great Assembly Hall, Throne Room, and Canaletto Room, which houses a collection of paintings by the Venetian painter. The Royal Castle also has a vast collection of artworks, antique furniture, and royal portraits.

The castle’s architecture is a blend of different styles, including Renaissance, Baroque, and Classicism. The castle’s interior is decorated with elaborate stucco, frescoes, and sculptural details.

2. The Warsaw Royal Castle is open daily, except for Tuesdays. The working hours are 9:30 am to 6 pm (April 1st – October 31st) and 10 am to 4 pm (November 1st – March 31st). The castle’s phone number is +48 22 355 51 70.

3. Tickets to the Warsaw Royal Castle can be purchased on-site or through the castle’s official website. The ticket costs depend on the type of visit and range from 20 PLN to 30 PLN ($5 to $8) for adults. Children and seniors can get discounts or enter for free. The castle is located in Warsaw’s Old Town and can be easily reached by public transport, including bus and metro.