Antoni Gaudí’s Basílica de la Sagrada Família is a monumental, unfinished church in Barcelona that has been under construction since 1882. Its fame and prominence have only grown in recent decades as the rate of construction has accelerated with support from technological improvements and a surge in funding from visitor fees. The building is already a central symbol of Catalonia and a major draw for (over)tourism in Barcelona, Spain.
As with the older Gothic Cathedrals found throughout Europe, construction was always expected to take a century or more. Gaudí directed the erection sequence to progress horizontally, with entire facades and towers rising to their final heights before foundations were laid in other sections. This approach allows successive generations to understand the design vision in sections complete to the fine ornamental details, garnering support for ongoing progress toward the eventual completion. A traditional vertical sequence, by contrast, could struggle to maintain interest amidst changing economic and cultural…