The content originally appeared on: CNN (CNN) - The streets of Madrid were filled with sheep and the clanking of bells on Sunday as shepherds guided their flocks through the heart of the Spanish capital, following ancient seasonal herding routes. Locals lined the route to welcome back the spectacle, which was canceled last year because of the Covid-19 pandemic. The annual event, which started in 1994, allows shepherds to exercise their right to use traditional routes to herd their livestock […]