Landwasser Viaduct construction

The Landwasser Viaduct (official name Landwasserviadukt) is a single-track six-arched curved limestone railway viaduct located in Graubünden, Switzerland.

Between 1901-1902, a bunch of people with vision, skill and determination built this remarkable project without computer-based design software or any of the modern, powerful construction equipment that is commonplace today.