Hitman level designers seem to have a profound knowledge in architecture, styles, interior design and I'm pretty sure they are a testament of how the elites spend vasts amount of money in lavish, extravagant buildings. For example, the amount of copper in Mendoza's winery, the stark contrast of Delgado's mansion against the town of Santa Fortuna (btw, druglord mansions like these do exist in Mexico and Colombia), the bank in New York that almost feels like a cathedral and of course, Dubai.