Great Structures - Palmyra's Tower of Elahbel: An ancient monument lost

Standing four storeys tall in Syria's Valley of the Tombs, the Tower of Elahbel was an ancient sandstone burial structure outside Palmyra. Beyond its funerary role, the site provided a vital breakthrough in the history of global textiles when archaeologists discovered fragments of Chinese silk yarns dating back to the first century. The monument survived two millennia until August 2015, when militants from the Islamic State of Iraq and the Levant detonated explosives beneath it, entirely destroying the ancient tower.

Source: Wikipedia