The Pilgrim Rocket is a means of transportation to the floating city of Columbia. Ten different launch stations in the United States served as the means for travelling to the city. After Booker DeWitt is transported by Rosalind and Robert Lutece to the lighthouse off the coast of Maine, he ascends to its top to find the door sealed with a bell-keyed lock. After ringing the bells in the correct sequence, the door unlocks and a stylish chair appears. When Booker sits in the chair, he is automatically strapped in, and the launch capsule closes up around him. Booker's Broadsider drops from his grasp as the rocket accelerates into the air, eventually reaching Columbia.