America's Scariest Highways

To identify the nation's scariest highways we sought advice from Mark Sedenquist and Megan Edwards, who run RoadTrip America, as well as from Marree Forbes (no affiliation with Forbes Inc.), who runs the site American Driving Vacations, and Robert Dolezal, author of The Most Scenic Drives in America: 120 Spectacular Road Trips.

Mark Sedenquist and Megan Edwards' California home was destroyed by a forest fire in 1993. Instead of rebuilding, the couple bought an RV and took to the open road, traveling across the U.S. and Canada for almost seven years.

The couple has since settled in Las Vegas, but they continue to take driving vacations and encourage others to do the same on their website, RoadTrip America, which they run through Flattop Productions, their small business. Sedenquist and Edwards estimate they've traveled over 650,000 miles.

Highway 1 (Florida)

Outside of Key West this roadway turns into a two-lane bridge that crosses an expansive body of shallow water that reflects blinding sunlight. On top of that, "it's really tough for the driver to stay focused because everything around you is so blue," Sedenquist says. This stretch of highway is also troublesome during hurricane warnings because it is the only way out and gets packed with evacuees.


Interstate 70 (Colorado)

I-70 through Denver has one of the highest passes on all the interstates, and its steep hills can be extremely slick in the winter. In bad weather "you just stay in your lane, don't touch your brakes, and hope you make it to the bottom," Sedenquist says.


Pacific Coast Highway (California)

Although it has beautiful views, this elevated, curvy roadway hangs over the water. But not everyone is sold on its scariness. Marree Forbes' clients always ask if this road is safe to drive, and she thinks "it's total, utter nonsense." The highway is "fabulous," she says.


Highway 1 (Alaska)

Because it is surrounded by beautiful scenery and mountains, this roadway is plagued with accidents. Driving along it can be terrifying "because people are sightseeing and they're not watching the road," Sedenquist says.




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Banner Image is the Guoliang Tunnel in China’s Taihang mountains.