One of the world’s largest retailers once tried to break into the U.S. by opening a mega store in Northeast Philly. It did not go well. We start with a headline from the February 1 issue of the Philadelphia Daily News in 1988: “Carrefour Opens Without Much Hype.” Based in France, Carrefour is a massive retail chain. The company operates more than 12,000 stores across 30 countries. For comparison, Walmart has just under 11,000 stores in 24 countries. So, yeah…it’s big.