<LI class=_AXc>Heard Island Volcano, Australia. ... <LI class=_AXc>Snake Island, Brazil. ... <LI class=_AXc>North Sentinel Island, Andaman Islands. ... <LI class=_AXc>Lascaux Caves, France. ... <LI class=_AXc>Poveglia, Italy. ... <LI class=_AXc>Vatican Secret Archives, Vatican City, Italy. ... <LI class=_AXc>Ise Grand Shrine, Japan <LI class=_AXc>Area 51, Nevada.