Concrete

adjective con·crete \(ˌ)kän-ˈkrēt, ˈkän-ˌ, kən-ˈ\

naming a real thing or class of things <the word poem is concrete, poetry is abstract>

formed by coalition of particles into one solid mass

a) characterized by or belonging to immediate experience of actual things or events; b) specific, particular <a concrete proposal>; c) real, tangible <concrete evidence>

relating to or made of concrete <a concrete wall>

Merriam Webster Online

Cities act as an integral facet of cultural development. With the growth of modern globalization, they serve as a site for ideological cross-pollination and cultural exchange, while also functioning as symbols of modernization and progress.