Passing by this slightly ramshackle colonial-era house, you'd never guess it was one of the city's best museums. It's also one of the hardest to get into—you need to call ahead for an appointment. But the effort is well worth it. Sergio Castro's collection of colorful clothing from the villages surrounding San Cristóbal is unparalleled. He explains how different factors—geography, climate, even the crops grown in a certain area—influenced how locals dressed. In explaining their dress, he is explaining their way of life. Each ribbon hanging from a hat, each stitch on an embroidered blouse has a meaning. Castro has spent a lifetime working with indigenous peoples; he currently runs a clinic to treat burn victims. Many of the ceremonial costumes were given to him as payment for his work in the communities. Castro gives tours in English, Spanish, Italian, and French.