The Grand Canyon in Arizona needs no introduction. Carved out by the Colorado river for more than five-million years, it is a UNESCO World Heritage Site and noted as one of the top wonders of the world. Travelers stream in to visit the red-hued canyon, taking day trips from Sedona, Flagstaff, Phoenix, Las Vegas, and beyond. For a different point of entry, book a seat on the Grand Canyon Railway out of Williams, and ride to the canyon and back on a seldom-used mode of transport. On a guided Jeep tour, you’ll get information about the area’s history, geology, and plants; while a bus tour includes narration and optional extras such as an IMAX movie. For views, it’s hard to beat a helicopter or airplane tour of the Grand Canyon. Be warned: When it comes to visiting the canyon, you’ll often have to pick a side. The South Rim is the most popular, and offers hiking opportunities such as Bright Angel Trail, with attractions on these paths including Desert View Watchtower, Grand Canyon Village, and Hermit’s Rest. The North Rim is more desolate, while the West Rim is home to both the Hualapai, a native American Indian tribe; and the glass-floored Skywalk, which teeters over the cliff at Eagle Point. Nearby, the smooth rocks of Antelope Canyon and the tranquility of Lake Powell are draws. No matter which tour you choose, aim to watch the sun set over the Grand Canyon as your day draws to a close.