At 410 feet long, it's the longest curved bridge in the world. Royal Gorge may have lost its title as the world's highest bridge, but it's still the tallest in the US.I felt it swaying as the gusts of wind came up and wrapped around the peaks, one travel blogger wrote. Visitors can also travel to the summit of the mountain, which is more than 12,000 feet tall. As its name suggests, the bridge has a transparent walkway.The bridge appears incredibly steep from certain angles, but the incline for drivers is somewhat gradual. A spokesperson for the nearby Titlis Engelberg ski resort told NBC News that it was impossible to fall from the bridge.The bridge is only open to pedestrians. An American high school student died in 2010 after climbing over a railing. The bridge may look terrifying, but it's able to hold more than 43 million tons of weight.The bridge is relatively short — around 66 feet.The walkway is actually a series of seven bridges that stretches across multiple tree tops. It's been dubbed the most dangerous bridge in the world.Animals are a common sight on the bridge, but pedestrians are also welcome to cross. Daredevils can take the plunge from more than 140 feet above the Kawarau River.The bridge has been around for nearly 120 years.At 4,700 feet above ground, the glass skywalk offers a chilling view of the Zhangjiajie National Forest Park.The bridge opened in 2016, so its construction is fairly new, but visitors must be brave enough to walk above a 164-foot-deep gorge.