Source: Free Documentary – Engineering Channel

Legendary Megastructures | The Supersized Sanctuary: Lourdes | FD Engineering

The Sanctuary of Our Lady Lourdes is the second most visited Catholic shrine in the world with around 600,000 visitors each year. Covering 52 hectares, it is one of the biggest Christian complexes ever built. It includes the Grotto of Massabielle, where the Virgin Mary appeared, 15 pools, a church, three basilicas and the 1,500 meter long Stations of the Cross. This program examines how each of these structures was built, as well as the technical challenges and difficulties of building a complex large enough to accommodate so many believers.

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Header image: Legendary Megastructures – Lourdes