'An Adventure in the Horizontal' is a new building on ETH Zurich's Honggerberg campus.
Built to maximize the space in the small campus on the outskirts of Zurich, Switzerland, the building's architects, Zurich-based Zust Gubeli Gambetti, were faced with a difficult problem. The site for the new building had to be on a rolling hillside, as flattening the hill would be too expensive. The firm's solution, as exemplified by An Adventure in the Horizontal, was the same solution that people have had for hills over thousands of years: stairs.
An Adventure in the Hoizontal is itself shaped like a staircase, allowing it to rise with the incline of the hillside. The building contains 155 rooms for offices, seminars, and lectures across four floors.