These Bridges Around the World Will Freak You Out

6. Lake Pontchartrain Causeway, Louisiana

You may come across this 24-mile-long bridge between New Orleans and Mandeville—as the longest overwater highway bridge; it's quite the experience. The causeway isn't dangling precariously over a seemingly bottomless gorge, but for eight miles of the journey, there's no land to be seen, which can be harrowing for some. Anxiety-riddled drivers have had to be rescued after stopping abruptly midway through the crossing. Fog and low visibility can also be daunting.