If you you´re coming from Lisbon on the IC 19, take the first exit Sintra / Centro Historico.

You are entering Sintra by passing a historical arch and coming onto a roundabout. There you´ll see the BP-Station right in front. You leave the roundabout straight on, just at your first exit.

After 600 mtrs you´ll see LM-Galleria de Arte on your left hand side!