1. La Scala Opera House, also known as Teatro alla Scala, is one of the most prestigious opera houses in the world, located in Milan, Italy. It was inaugurated in 1778 and has since been a symbol of Italian opera and classical music. The theatre has a rich history and has hosted world-renowned composers, conductors, and performers over the years. The impressive neoclassical building is known for its excellent acoustics and beautiful architectural design.

2. La Scala's working hours vary depending on the schedule of performances and events. It is advisable to check the official website or contact the box office for updated information. The contact phone number is +39 02 88791.

3. Tickets for performances at La Scala can be purchased online through the official website, at the box office, or through authorized ticket vendors. Prices may vary depending on the seat location and the popularity of the performance. It is recommended to book tickets in advance as shows at La Scala tend to sell out quickly. The opera house is easily accessible by public transportation, with nearby metro and tram stops.