The sixth-largest state in terms of area, Arizona, is renowned for its geography and climate. Southern Arizona has a desert climate, while Northern Arizona is full of forests, mountains and canyons. The state has several national parks, monuments and forests, including the Grand Canyon. Best time to visit: Dec-To-Feb Things to do: Antelope Canyon, Experience Sea Life, Radford Racing School, Hot Air Balloon Ride

Colorado is known for its vibrant landscape of mountains, forests, mesas, canyons, plateaus, rivers and desert regions. Colorado belongs to the mountain states and is part of the West, often considered part of the Southwest of the United States. Best time to visit: Mar-To-Oct Things to do: Horseback Riding, Hot Springs, Ghost Towns, Casinos

Wyoming attracts millions of visitors each year to its seven national parks, including the legendary Old Faithful Geyser and Yellowstone, home to the nation's largest hot springs. People also travel to see Devil's Tower, a rock formation sacred to the Plains Tribes and declared the first national monument in 1906 by Theodore Roosevelt. Best time to visit: Jun-To-Aug Things to do: Grand Canyon, Camping, Exploring The Woods, Visit Museums