Mega Projects - Sagrada Familia: Barcelona's Infamous Unfinished Church, 21112020

Sagrada Familia is a symbol of Barcelona yet it remains unfinished more than 13 decades since its construction began. The church's unique design has drawn millions of curious visitors yet few of them understand the layers of controversies that almost kept it from ever being built. It was the brainchild of a tortured genius whose work fills the city that he loved so much.

Real Engineering - Sagrada Familia, The World's Oldest Construction Project

A look at Gaudi's design concepts for the Sagrada Familia; a 135 year construction project that started in 1882