Interior of Berlin Cathedral, Berlin, Germany, Europe

Interior of Hallgrimskirkja Church, including the large pipe organ, Reykjavik, Iceland

Basalt rock formation Los Organos, Organ Pipe Rock, near Vallehermoso, aerial view, La Gomera, Canary Islands, Spain, Europe

Basalt rock formation Los Organos, Organ Pipe Rock, near Vallehermoso, aerial view, La Gomera, Canary Islands, Spain, Europe

The Organ, organ-pipes, basaltic columns, Giant's Causeway, Causeway Coast, County Antrim, Northern Ireland, United Kingdom, Europe

Roque de los Organos, organ pipes rock, view from boat, La Gomera, Canary Islands, Spain

Roque de los Organos, organ pipes rock, view from boat, La Gomera, Canary Islands, Spain

The Organ, organ-pipes, basaltic columns, Giant's Causeway, Causeway Coast, County Antrim, Northern Ireland, United Kingdom, Europe

Roque de los Organos, organ pipes rock, view from boat, La Gomera, Canary Islands, Spain

Main organ, Speyer Cathedral, a Unesco World Heritage site, laying of the first stone around 1030, Speyer, Rhineland-Palatinate, Germany, Europe

Organ pipe cacti at Organ Pipe National Monument