A Virtual Obelisk

A monument that is half shade, half shadow.

A cenotaph to *Ozymandias, perhaps.

*THE REFERENCE IS TO THE POEM "OZYMANDIAS",  ABOUT THE EPHEMERALITY OF POWER AND HUBRIS, BY THE ENGLISH POET PERCY BYSSHE SHELLEY.  IT TELLS OF THE DISCOVERY OF A GIGANTIC RUIN IN A DESERT, PURPORTEDLY A HEROIC PORTRAIT OF AN ANCIENT RULER BY THAT NAME, NOW FORGOTTEN.  THE MOST FAMOUS LINE FROM THE POEM IS "LOOK ON MY WORKS, YE MIGHTY, AND DESPAIR!".