Rose Island (Lake Starnberg) - Credit: Wikimedia Commons
Rose Island in Lake Starnberg is the only island in the lake and site of a royal villa of King Ludwig II of Bavaria which had been commissioned by his father. He was particularly attached to this place and made frequent renovations and remodelings of the small garden and the villa, which is called casino. Guests on the island were the composer Richard Wagner, his close friend Prince Paul of Thurn and Taxis, Empress Elisabeth of Austria and Grand Duchess Maria Alexandrovna of Russia. The villa is today a small museum, open to the general public and is accessible by a small ferry ride. Read more on Wikipedia
Source: en.wikipedia.org