Authentic Spanish Architecture/Culture

I'm watching The Three Caballeros (1977.)

The old buildings may "just" seem primitive to you, but the Spanish had ancient European architecture.  People dress modern today but see themselves cut out as an ancient European with ancient European culture as the roots of a lot of what surfaces.

In fact, people born in the 1970s and 1980s seem to have skedaddled out of here, leaving the past behind of what they even had in their life and what can ring a bell today.