1. Kadriorg Palace is a Baroque palace located in the Kadriorg district of Tallinn, Estonia. It was built by Peter the Great of Russia in the early 18th century as a summer residence for his wife, Catherine I. The palace is known for its beautiful architecture and elaborate gardens. Inside the palace, visitors can see various rooms that have been restored to their original style, including the Great Hall, the Chapel, and the living quarters of the royal family. The palace also houses the Kadriorg Art Museum, which displays a collection of foreign art.

2. The working hours of Kadriorg Palace can vary depending on the season, so it is recommended to check the official website for the most up-to-date information. The phone number for inquiries is +372 606 6400.

3. Tickets for Kadriorg Palace can be purchased on-site or online. The prices can vary depending on whether you want to visit just the palace or the palace and the art museum. There are also guided tours available for an additional fee. The palace is easily accessible by public transportation, with trams and buses stopping nearby. Visitors can also reach the palace by walking or biking from the city center.