San Francisco's Millennium Tower leans further west despite engineering efforts.

San Francisco's Millennium Tower has continued to tilt and sink deeper into the ground, with monitoring data revealing a half-inch deeper tilt than previously thought. Engineers have been working to stabilize the building, but the data shows progress on the north side may have come at a cost to the west side. The tower was built on a former landfill, and engineers plan to secure the foundation to a dozen piles sunk along Fremont Street to bear the partial weight of the building load. The goal is to reverse the tilt by the end of the month.