Where are the Mulu Caves, explored since 1978 by a collaboration between UK speleologists, the Forestry Corporation for the area, and the UNESCO World Heritage site which is the Gunung Mulu National Park?
Borneo, Sarawak As at 2018 the expeditions had explored and surveyed 435 km (270 mi) of cave passages, including the largest known underground chamber, cave passage and cave (by volume) in the world.
Concorde, a collaboration between British Aircraft Corporation from the UK and Aérospatiale from France, took its first supersonic flight when?
In 1896 the final collaboration by W.S.Gilbert and Arthur Sullivan was staged at the Savoy theatre, London, UK. What was it called?
