1. The Semper Opera House (Semperoper) is a famous opera house located in Dresden, Germany. It was originally built in 1841 by architect Gottfried Semper, but was destroyed by a fire in 1869 and later rebuilt in 1878. The opera house is known for its stunning architecture, featuring a mix of Renaissance, Baroque, and Neo-Renaissance styles.

2. The working hours of the Semper Opera House can vary depending on the schedule of performances. It is recommended to check their official website or contact them directly for the most up-to-date information. The phone number for the Semperoper is +49 351-4911-705.

3. Tickets for performances at the Semper Opera House can be purchased online through their official website or at the box office. Prices can vary depending on the seating and the production. The opera house is located in the historic city center of Dresden, making it easily accessible by public transportation such as trams or buses.