<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by dctorres:
There is also a seasonal bus called the "balabus" which crosses Paris -- and stops at many tourist attractions and photo-ops.
It is a RATP bus and requires a single ticket.</font>
Is it this one?:
Grande Arche de la Défense - Gare de Lyon Sunday and Bank Holidays only
http://www.ratp.fr/ParisVisite/Eng/P..._g/balabus.htm
This one goes only on Sundays and Bank Holidays. My French is so bad, but it looks that you need more than one ticket, at least when you go past Porte Maillot?
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">...Balabus run from stops marked ‘Balabus’ from mid-April to mid-September, passing key sights between the Grand Arche de la Défense and the Gare de Lyon. Details can be obtained from any metro station...</font>