Some 20,000 years ago, the Reuss glacier covered the entire plain as far as the Jura and its geological treasures were discovered in 1872. A landscaped garden was created around the site to better enhance these finds. The garden, planted with alpine flowers, is home to a panoramic tower and a maze with Moorish-like mirrors. The next-door museum houses, among others, the oldest scale model of central Switzerland (1786) and miniatures of traditional houses.