Interior of <i>Dolmen de Menga</i>, a bronze-age tumulus (<a href="//commons.wikimedia.org/wiki/Dolmen" title="Dolmen">dolmen</a>) from the mid 3rd millenium BC (ca. 2500 BC) in <a href="//commons.wikimedia.org/wiki/Antequera" title="Antequera">Antequera</a> (<a href="//commons.wikimedia.org/wiki/Andalusia" class="mw-redirect" title="Andalusia">Andalusia</a>, <a href="//commons.wikimedia.org/wiki/Spain" class="mw-redirect" title="Spain">Spain</a>)
Manfred Werner - <a href="//commons.wikimedia.org/wiki/User:Tsui" title="User:Tsui">User:Tsui</a>
CC BY-SA 3.0
see author