John Badman | The Telegraph ALTON — An engineering firm is studying the best way to repair or reconstruct a circa 1800s limestone block wall which supports a city sidewalk and partially collapsed in ...

Researchers have investigated erosion in the different kinds of limestone in the Western Wall at the foot of Jerusalem's Temple Mount. Stones made up of large crystals were almost unchanged in 2000 ...

San Antonio straddles the Balcones Fault, a limestone escarpment that rises out over the agrarian flats of south Texas. It is here, near the campus of Trinity University, the Sunken Garden Theater and ...