Set back from the hectic Aeschenplatz, Mario Botta’s building Rundecke (round corner) radiates stillness and composure. Botta, a star Swiss architect, produced the design for a competition in 1986. UBS built it in 1995 as a headquarters, but didn’t stay long. Shortly after their merger with Swiss Bank Corporation, they sold it to the Bank for International Settlements in 1999. It is the latter’s second building, housing their banking and risk control, and also a gym. The building has several features characteristic of Botta’s works, including the striking alternating stripes of colour and the inverted staircase void.