A construction crew prepare a Komatsu Ltd. excavator to use during the groundbreaking ceremony for the Hudson Yards development in New York, U.S., on Tuesday, Dec. 4, 2012. Related Cos. has tentative deals in place for two more tenants to occupy the first tower of its Hudson Yards development, Chairman Stephen Ross said today as construction began at the 26-acre site on Manhattan’s west side. Photographer: Victor J. Blue/Bloomberg via Getty Images