Peru

Shellfish collectors in Peru make a living harvesting a special mollusk called the barquillo, a primary ingredient in a world-famous ceviche dish. But hunting the elusive seafood comes at a deadly cost.

Seafood is one of the most commonly fraudulent foods we come in contact with, according to the ocean-conservation nonprofit Oceana. Your red snapper could actually be a tilapia fillet. That wild-caught salmon? It could be farm-raised.

After a four-year legal battle, demolition began this week on Peru's "Wall of Shame" between rich and poor neighborhoods. On one side are multimillion-dollar mansions with swimming pools. On the other are crowded slums where residents have had to build up the hillside.