"Limestone is a really expensive exterior stone," he said. "To put a value on that, it's definitely north of $1 million just in material and install to do a full limestone house today. And what ...

The Alamo conservator Pam Rosser saw the limestone being dug up from the Congo Falls construction site and thought it looked ...

Limestone is a sedimentary rock created by layers of skeletons and shells of sea creatures found in ancient, warm, shallow seas settling and being compressed and hardened until it becomes stone.

The renovation includes a new white limestone exterior, replacing the buildings' iconic pink color. Other upgrades include hurricane-resistant windows, a full backup generator, and space for two ...

And they have begun to install exterior lighting that ... a glimpse of how much soot the stone accumulated over time. Stock said cleaning the remaining limestone is a project for later.

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.