Looking Down, What makes Stonehenge unique? For one, its design, which includes huge horizontal stone lintels capping the outer circle and sitting atop the vertical slabs called trilithons, locked together by joints. In addition, the structure includes two different kinds of stones called Bluestones and Sarsens, the largest of which weighs more than 40 tons, according to UNESCO.
Top 67 des merveilles du monde à visiter avant de passer l’arme à gauche
Bryn Celli Ddu. is a prehistoric site on the Welsh island of Anglesey located near Llanddaniel Fab. Its name means 'the mound in the dark grove'. The Summer Solstice sun lights up a quartz stone at the back of the chamber.