In his glossy coffee-table books New Museums and New Retail (Phaidon, $70 each), Raul Barreneche documents more than 50 architectural innovations—from Herzog & de Meuron's Schaulager exhibition space in Basel, Switzerland, to Prada's Rem Koolhaas–designed Los Angeles store. Barreneche, a Travel + Leisure contributing editor, examines how these groundbreaking structures have ushered in a fresh era of design for both art and commerce.