Villa Rebar is a ruined hunting lodge from 1932 located on Medvednica mountain, near Zagreb, Croatia.
It was known as the residence of Croatian WWII politician Ante Pavelić.
[1] After the war, Pavelić fled, and the villa was eventually remodelled and turned into a mountain resort called "Risnjak".
The above ground foundations of the home remain to this day, overgrown and marred with graffiti.
However, exploring the tunnels beneath the ruins of Pavelić's former mansion is not recommended.