The tubes open up every ten and twenty feet to access tunnels and maintenance spaces that all look the same. The only variation is the section numbers on the walls and the occasional street location markers to let you know where in the city you were under. It took us nearly an hour, but we got to where I wanted to go. The access tunnel under the area known as the ‘Gold Section”. We climbed out of the transport capsule, and each took a moment to stretch after the confinement. ...