Fodor's Expert Review CaixaForum

Swiss architects Jacques Herzog and Pierre de Meuron (who designed London's Tate Modern) converted an early-20th-century power station into a stunning arts complex that arguably turns Madrid's "Golden Triangle" of art museums into a quadrilateral. Belonging to one of the country's wealthiest foundations (La Caixa bank), the structure seems to float above the sloped public plaza, with a tall vertical garden designed by French botanist Patrick Blanc on its northern side contrasting with a geometric rust-color roof. Inside, the soaring exhibition halls display ancient as well as contemporary art including pieces from La Caixa's proprietary collection.