Flash flood warnings were issued by the National Weather Service in Phoenix and Flagstaff on July 21 for Maricopa and ...

Discover 25 unusual places to take a vacation that will blow your mind. Escape the ordinary with bizarre, remote, and extreme ...

Mars is the fourth planet from the sun and has a distinct rusty red appearance and two unusual moons. The Red Planet is a ...

Route 66 in Arizona has a clear favorite among The Arizona Republic readers. Why this landmark keeps drawing crowds after ...

Before Apollo 11’s “giant leap,” astronauts trained in Oregon’s lava fields. Newly surfaced footage and photos show suit and ...

Discover the most breathtaking waterfalls in every U.S. state, from famous cascades like Niagara Falls to hidden gems in ...

In a state where the average rent keeps climbing like it’s training for a marathon, Winslow, Arizona is doing something ...

The United States has a proud history of preserving its natural beauty through national parks. Each year, millions of ...

An ancient meteor blasted a giant bowl into the Kentucky mountains, and an entire city now lives inside it while most ...

Episode 50 lava fountaining in Kilauea’s Halemaumau crater “ended abruptly ” at 5:10 p.m. today after seven hours, Hawaiian Volcano Observatory scientists said. “Tephra that was carried high into the ...

A huge crater in Western Australia was created by an asteroid strike 3 billion years ago, according to a mineral-dating technique. This would make it the oldest impact crater on Earth – but other ...

Summer or winter, it never gets old sleeping under the stars and waking up to breathtaking views amid the wonderfully diverse landscapes of the U.S. Whether you're pitching a tent ...