The Europeans are coming! Koolhaas, Herzog & de Meuron in LA

Some high-profile European architects have projects in the works for the Southland and have waded into the argument about density. DnA looks at projects both spiritual and commercial from famed Dutch architect Rem Koolhaas and his firm OMA, and we check out a mammoth mixed-use project in the Arts District by Herzog & de Meuron.