On our recent trip to Peru, we traveled from the Sacred Valley by train to the city of Puno on the shores of Lake Titicaca. (That train ride was an unforgettable experience. And, in case you missed it, here’s our post about our visit to the Sacred Valley.) We found the city of Puno itself to be pretty unremarkable. It has its charms, but mostly it’s a somewhat grungy agricultural and industrial center for southern Peru. We spent two full days in Puno before taking the bus to Arequipa, and that was plenty of time. Most memorably, we got to explore the lake and learn about two colorful and ancient indigenous peoples based there: the Uros, famed for their floating reed-island homes, and the residents of Isla Taquile with their colorful knitting and weaving traditions.   A Life Afloat: the Buoyant Uros The Uros people have been living on their…