The Botanical Garden on the "Gugl" are among the most beautiful in Europe. Over an area of 43,000 m², there are more than 10,000 various types of plants to admire. In the five greenhouses the splendour of exotic specimens predominates the garden’s unique collection of cacti, the finest in Europe. The natural conditions allow the exhibited plants to be grouped in complete landscapes, so that visitors can imagine they are in the middle of the plant’s natural habitat. https://www.linz.at/english/tourism/921.asp