Diana Butterfly House in Karlovy Vary Butterfly House - a tropical garden with live butterflies from all over the world - Eg. From Thailand, Philippines, the rainforests of South America and Mexico. A visit to the Butterfly House will be an unforgettable experience – a close encounter with nature in all its beauty and diversity. Get ready to meet the most beautiful butterfly species from around the globe. You will be able to watch all stages of the butterfly life cycle from the egg to the caterpillar over to the chrysalis and the fragile adult butterfly in their natural habitat. Witness the butterfly's first flight!