The Sky Lounge is one of the interior spaces revamped by Foster + Partners and development firm SHVO in a renovation of San Francisco’s Transamerica Pyramid. (Courtesy SHVO) John Beckett ...

Archaeologists have begun digging for what they think might be a pyramid hidden beneath a hill in Bosnia. Known as Visocica, the 650m (2,120ft) triangular mound, overlooking Visoko, has long been ...

I can’t see it”. Several viewers were convinced that the mysterious triangle had alien origins. One person wrote: “The darker face of the pyramid is darker than the background sky – you ...