Colombian artworks rich in meaning

Colombian curator José Roca doesn't want visitors to bring too cerebral of a mind-set to the exhibition "Waterweavers: The River in Contemporary Colombian Visual and Material Culture.""I think in exhibitions there is too much imperative on understanding things, whereas you should be experiencing them," says Roca, who curated the show with Alejandro Martín, a fellow Colombian. "Waterweavers," now at the Art Museum of the Americas after runs in New York and Madrid, is "meant to be experienced by...