Tsankov Kamak dam
... that Tsankov Kamak dam is the first double-curvature arch dam in cupola shape in Bulgaria?
... that <b id="mwAlU"><a href="./Tsankov_Kamak_Hydro_Power_Plant" id="mwAlY" rel="mw:WikiLink" title="Tsankov Kamak Hydro Power Plant">Tsankov Kamak dam</a></b> <i id="mwAlc">(pictured)</i> is the first double-curvature <a href="./Arch_dam" id="mwAlg" rel="mw:WikiLink" title="Arch dam">arch dam</a> in cupola shape in <a href="./Bulgaria" id="mwAlk" rel="mw:WikiLink" title="Bulgaria">Bulgaria</a>?