Dolmen, Quoit or the Dragons' House

Always been fascinated with Stonehedge and Dolmen Houses, and today I found out that in Greek they are called Δρακόσπιτα (Dragonhouses), which makes everything so more interesting and urgent. Dolmens are also called Quoits or Cromlechs, it all depends where they are, but here's a few cool examples...
typical cromlech
Dolmen
Stonehedge
of course
the most famous Dragon House in Karystos
looks totally livable
almost comfortable
little dolmen
great rocks