Diana's Butterfly House in Karlovy Vary, is a tropical garden in the town of Karlovy Vary, and includes a group of the most beautiful butterflies that were brought from around the world, from Thailand, the Philippines, or the rainforests in South America, or Mexico, in numbers up to hundreds, of different sizes. Some of them have a wingspan of up to 20 cm, which visitors can watch closely, through a guided tour of the place.