The organ of Engelberg Monastery built in 1877 is one of the most impressive and largest pipe organs in Switzerland—and even in Europe. The organ was built by Friedrich Goll, later expanded and restored by Goll & Cie and Orgelbau Graf AG. It has 137 stops and roughly 9,097 pipes. The console has been modernized with a setzer system. Timeline of the instrument: Original Construction (1877) Built by Friedrich Goll of Lucerne Featured 50 stops across three manuals and pedal Mechanically operated with Barker levers (pneumatic assistance for manual action) First Major Expansion (1926) Rebuilt and expanded by Goll & Cie Upgraded to 134 stops across four manuals Introduced pneumatic action and new console Added tubular pneumatic systems for long-distance transmission Restoration & Modernization (1992–1993) Carried out by Orgelbau Graf AG Introduced electrical action for both keys and stops Added two more pedal stops, bringing the total to 137 Installed modern control systems for registrations The Engelberg organ is often compared to famous European cathedral organs—not for age, but for technical sophistication and tonal variety. Despite being built in the late 19th century, it can convincingly interpret Baroque, Romantic, and even modern organ literature.