ROME'S BURIED SECRETS http://www.sciencechannel.com/ The Pantheon in Rome, Italy, was completed by emperor Hadrian around 126 AD. The dome alone weighs 4535 metric tons. Watch full episodes:...
========== Armstrong:
OVER THE PAST 2,000 YEARS,THE PANTHEON HAS BEEN
A PAGAN TEMPLE, A CHURCH,AND THEN A TOMB
FOR ITALIAN KINGS.THE BUILDING WE SEE TODAY
WAS COMPLETED IN 126 A.D.WHEN ROME RULED AN EMPIRETHAT STRETCHED FROM
PORTUGAL TO PERSIA,FROM SCOTLAND TO THE SAHARA.[ WOMAN SINGING OPERA ]I'M EXPLORING
THIS REMARKABLE BUILDINGWITH ARCHITECTURAL HISTORIAN
PROFESSOR ETTORE MAZZOLA.THERE IS JUST SOMETHING
INCREDIBLE ABOUT IT,ISN'T THERE?
-FANTASTIC.THE INTERIOR IS A VAST CYLINDER,BUT ITS CROWNING GLORY
IS THE DOME.THIS IS STILL TODAY THE LARGEST
UNREINFORCED CONCRETE DOMEEVER BUILT ON THIS PLANET.WE ARE TALKING ABOUT
A BUILDINGWHICH IS 43.3 METERS
IN DIAMETER.I MEAN, THAT'S --
FOR US IN ENGLAND,WE ALWAYS THINK OF ST. PAUL'S
WITH THIS AMAZING DOME...
