Rio de Janeiro is, quite literally, the most beautiful city I’ve ever visited—and I’ve been to cities across more than 60 countries. There’s something unreal about how it all fits together: long stretches of beach, lagoons and lakes, giant monolith mountains rising straight out of the city, and pockets of real jungle just a short drive away. One moment you’re in the middle of noisy streets and busy cafés, and the next you’re looking down at the coastline from a summit above the clouds.