Walls and Towers – On Castles, Ruins and Palaces!

Flak Towers of Vienna

Adolf Hitler’s modern castles: These 20th century fortifications were designed to withstand a direct hit of an aerial bomb.
Hohenneuffen

If you like castles you’ll love the ruined castle Hohenneuffen. Here are 10 pictures and some of the details nobody else will tell you.
Dubrovnik

The cradle of freedom: Dubrovnik, and how it rose from a refugee settlement to the first state that abolished slavery to one of the first states that recognized the United States of America as an independent nation.