2. Skywalk X, Macau, China
One of China’s tallest towers offers visitors the chance to hang out at the top. Did we mention there are no handrails to hold on to? Daring visitors are strapped in by harness and encouraged to walk around the tower, lean over the edge and even dangle their feet over. For the true daredevil, there is an extra climb up the mast’s vertical ladders to reach the summit. And if that wasn’t enough for you, try hurling yourself off the side on the world’s highest bungee jump. Up the ante even more by doing this at night, which offers gorgeous skyline views and an extra touch of adrenalin.