I must confess that looking back thorugh some old pic's of my road bike that my drops always used to be horizontal, as time has gone by they have rotated to the point where now the tops are horizontal, still use the drops though, only on down hills mind you.
LeMond had some great bars, my favourites are the Scotts where the drops turn in back toward the frame and then join up again aero style in front of the head tube.
Somerset, like 'Heartbeat' with newer cars!
Retro MTB: 1992 Cannondale 3.0 Deore XT M730. 1992 Marin Pine Mountain Deore DX M650.
Retro road: 1992 Eddy Merckx Corsa Extra Telekom Shimano 600 STI. 1993 Dyna Tech Ti.
Modern: 2006 Wilier scandium Ultegra 6600. 2014 Wilier GTR Ultegra 6800.