Architecture firm TAROS NOVA has pulled off an impressive feat in the Czech Republic: the construction of the world’s longest suspension skywalk. Located at the Dolní Morava Mountain Resort in Horsky, Sky Bridge 721 spans an incredible 721 meters (about 2,365 feet) between two peaks of the Kralicky Snezník mountain. At its highest point, it’s a dizzying 95 meters (311 feet) above the ground of the valley below. It took two years to complete this complex engineering project, but the bridge opened to the public this spring, drawing crowds of visitors eager to test their ability to withstand stomach-turning heights.

The design of the bridge looks deceptively simple. It’s made of metal, with a solid surface to step on and chain link mesh on either side for safety. But figuring out exactly how to support it took some experimentation. “It was a long-distance run with occasional sprints from initial design, through design to completion of construction,” say the architects. “Professionalism, precision, and hard work [are at] the top of the list. How else to describe the more than 100 bridge variants, the countless structural analyses and calculations, the demanding coordination of design, production, logistics, and finally the construction itself.”
To access the bridge, visitors either take the ski resort’s chairlift to the entrance, or they can walk or bike all the way up the nearly 2.5-mile-long trail. Though it ta...