This page tells you how to get to the Alhambra
which is at 21 rue Yves Toudic Paris 10.

Well the red circle is on the spot -

Best Metro : either Republique or Jacques Bonsergent
and there is no shortage of buses

If you are driving and coming from the north down Boulevard Magenta
then you have to go all the way round the place de la Republique
as though you were going to go back up Magenta
but turn right on rue Leon Jouhaux then 2nd left on rue Yves Toudic
you'll see a big red sign on the left hand side announcing the Alhambra.