Existing

In the 60's & 70's, the Yugoslavian president (at the time) commissioned different sculptors and architects to build structures to commemorate sites where WWII battles took place or where Concentration Camps had been located.  When the Republic dissolved in the early 90's, these amazing man-made structures were abandoned and completely forgotten about.  Their symbolic, decaying beauty has been captured by photographer Jan Kempenaers.  I find these monuments to be absolutely stunning, surreal, futuristic, and even eerie.

All photos via Jan Kampenaers.