Lady Gaga fans in awe of elaborate Coachella set: 'Like being there when the pyramids of Giza were built' / The jaw-dropping church that's taken longer to build than the Egyptian pyramids / Ancient Egypt breakthrough as incredible new studies reveal 'how pyramids were built' / Bizarre 300ft 'Egyptian' pyramid topped by crystal skull loomed abandoned over US city before getting surprising new use / Nick Kyrgios claims pyramids were not built by humans and Earth could be flat / Neither the Great Wall of China nor the pyramids of Egypt: the only human construction clearly visible from space is in the south of Spain / Oldest pyramid in Egypt shows signs of hydraulic building technique / Inside world's biggest museum built to host 'cursed' body of King Tut in the shadow of Egypt's ancient pyramids / Egyptian pyramid may have been built using a water-powered elevator / Scientists may have solved mystery of Egyptian pyramids' construction