A centuries-old mystery about the origins of the limestone used to build ... comes at an important time since the walls of ...

Whether you've chosen limestone for your patio flooring or walls, you'll need to learn how ... which could scratch the stone. • Garden hose or bucket of clean water — For rinsing off debris ...

Alamo officials on Thursday confirmed that limestone from a historic quarry ... restoration and roof replacement of the Alamo Church. Stone from a construction site at the zoo’s new gorilla ...

A monumental discovery has been made in the San Antonio Zoo, confirming the exact quarry that provided the limestone to build the Alamo and solving a mystery spanning centuries.