Inside the Colombian cathedral built 180m underground

The BBC recently reported on an unusual Colombian cathedral. Located 180 meters underground, the cathedral is a significant architectural and engineering feat. The report details the construction and unique features of this subterranean religious site. The article explores the "who, what, when, where, why" of the cathedral, providing insights into its origins and purpose. The report is available on the BBC website and as an audio episode on BBC Sounds.