�Sexy beaches, buzzing nightlife, pristine jungles -- this South American nation has pretty much everything a honeymooner could want, � says Yolanda Crous of Brides magazine. And with the World Cup happening this summer and the Olympics coming up in 2016, this country has never been hotter. Party all night in Rio de Janeiro, soak in some sun on the laid-back beaches of Bahia, the…