In Ancient Egypt only the pharaohs and the wealthy class were mummified.

In Ancient Egypt only the pharaohs and the wealthy class were mummified.

The Opus Reticulatum was use by the Greeks to build buildings.  

The Minaret of Jesus at the Great Mosque Damascus 706-715 AD does not exist. 

The bazaar in Isfahan, Iran is a straight street lined with shops on only one side that is covered by a roof to keep out the sun. 

In the Gothic Period the cathedrals used barrel vaults instead of ribbed vaults because they were too hard to build.

The Flavian Amphitheater In Rome had a wooden floor that concealed trap doors and rooms below it which could be used for theatrical effects.

The Mycenaean Treasury of Atreus 1330 BCE was used to store gold from taxes. 

What was the primary purpose of Stonehenge? 

The monastery plan at St. Gall built in 817 AD by the Benedictine order was a failure and was never constructed again.