Grand Canyon vs Rio de Janeiro

The Grand Canyon is the one sight in the American Southwest that genuinely lives up to the hype: 277 miles long, up to 18 miles wide and about a mile deep, with layer upon layer of rock that changes color by the hour. Most visitors head to the South Rim, open year-round, where Mather Point, Yavapai Point, Hermit Road and Desert View Drive deliver the classic views and the Bright Angel Trail drops below the rim. It is very possible to see it as a long day trip from Las Vegas, about 4.5 hours each way, with a stop at Hoover Dam; the closer Grand Canyon West and its glass Skywalk, run by the Hualapai Tribe, is a shorter but very different alternative. Stay a night or two at the rim and you can add sunrise, a partial hike and the quieter eastern viewpoints. With more time, Northern Arizona fills a great road trip: Horseshoe Bend and Antelope Canyon near Page, the red rocks of Sedona and a stretch of historic Route 66 through Williams, Seligman and Kingman. Arizona does not observe daylight saving time, but the Navajo Nation does, so watch the clock on tour days.

Rio's setting is unmatched — granite peaks rise directly from the city between Copacabana and Ipanema's beaches, with the Christ the Redeemer statue watching over it all from Corcovado mountain. Samba, Carnival, and a beach-centred daily culture define the city's rhythm, alongside favela communities that are an essential, complicated part of Rio's social fabric.