1. Auberge de Castille is a historical building located in Valletta, Malta. It was built in the 16th century by the Order of St John and served as the official residence of the Grand Master. Today, it is the office of the Prime Minister of Malta. The building features impressive Baroque architecture and is considered to be one of the finest examples of this style in Malta. It has been extensively restored and renovated over the years. Visitors can admire the beautiful façade and explore some of the interior spaces, which include an impressive entrance hall and a large courtyard.

2. Auberge de Castille is not open to the public except on special occasions. However, visitors can take guided tours of Valletta that pass by the building. The working time of the Prime Minister’s office is Monday to Friday, from 8:30 am to 3:00 pm. The phone number of the office is +356 2122 1515.

3. There is no ticket or entrance fee to visit Auberge de Castille since it is not open to the public. Visitors can take buses or taxis to Valletta and explore the city on foot. Valletta is a compact city and most of its attractions are within walking distance of each other.