Tower Cranes Marriott HQ

http://www.pedestrians.org Two tower cranes are erected over a weekend for the new Marriott Headquarters building in Bethesda, Maryland. This video shows the erection of the mast of the south tower crane on Saturday morning, and the erection of the jib of the north tower crane on Sunday morning. Produced by John Z Wetmore, producer of "Perils For Pedestrians".