The Sagrada Familia in Barcelona plans to build a stairway despite local protests, which could lead to the demolition of nearby housing and the eviction of around 1,000 families. The project is expected to continue until at least 2035, with ongoing discussions between the architects and the city council. Legal actions are being taken by local representatives against the stairway, claiming it was not part of Gaudí's original plans. The basilica is a major tourist attraction, with increasing visitor numbers raising concerns about overcrowding.