Abstract: An apparatus and method are provided for joining a first structure to a second structure. In one embodiment, a bridge 100 is provided for joining a movable structure 105 to a fixed structure 110. The bridge 100 includes a number of spaced apart extensible beams 115, each beam having a first end 125 pivotably and rotatably attached to the movable structure 105 and a second end 130 pivotably and rotatably attached to the fixed structure 110. Deck members 135 are supported by the extensible beams 115 in a substantially horizontal attitude, each of the deck members pivotably and rotatably attached to one of the beams whereby access is provided between the movable structure 105 and the fixed structure 110. In one version, the movable structure 105 includes a vehicle, such as a train, an automobile, a watercraft, an aircraft or a spacecraft. In another version, the movable structure 105 is a motion-base 230 of a simulator, amusement ride or a theater 235.