Virtually all visitors to Brazil have Rio de Janeiro as one of the places that they want to explore in depth during their time in South America’s largest country, but there is one problem with this: this metropolis is massive in scale. As such, it requires a plan to tackle effectively (one that can be solved by hiring a guide through providers such as tourguiderio.com) and safely, as many of the best spots are unknown to outsiders. Below, we reveal some of the coolest neighborhoods in Rio, and what you can expect to see there… 1) Ipanema While many associate…