"A Bridge So Far": Japan's Alkashi Kaikyo Bridge All the time man is trying to better himself and accomplish the impossible. Japan's Alkashi Kaikyo Bridge does accomplish the impossible. Japan is made up of four islands and after the building of the Alkashi Kaikyo Bridge, they are connected. Now, Japan is the proud owner of the four largest bridges in the world. The Alkashi Kaikyo is 12,828 ft. long, stretching more than two miles. Building a bridge that size in itself is an amazing feat, but in Japan they also had to build the bridge so it was strong enough to withstand an earthquake of an eno