Click on the link and you'll see. He starts out in Troy then heads right across the straight to Ismara which he plunders - oops, bad move. Before he and his men can get back on the ships many are killed. They then run into fierce storms that carry them all the way across the Mediterranean to northern Africa where they reach the land of the lotus eaters. The crew imbibes of the lotus and ends up not caring whether they ever leave? Hmm, sounds like some kind of drug problem.
If you look at the map the furthest port they reach from Ithaca, or Troy for that matter, is Calypso. The map puts the island of Circe somewhere in Spain and Odysseus ends up living with the nymph for seven years (it's a long story). If you're reading the story, the interactive map created by Gisèle Mounzer is a great way to keep track of Odysseus' tacking back and forth across the ancient seas.
When I read books, I like the ones where there is a map on the inside front cover so that I can follow along with the characters and see where they are headed. This map is helpful because it shows the breadth of the ancient world and makes the reader wonder what Odysseus was thinking?
Why do you think it took Odysseus twenty years to get home? He constantly talks about getting home to his wife and son, but then wanders all over the Mediterranean. Could it be fate? Did he tempt the gods too much? Did he just have a rambling soul? Can you picture yourself on a ten-year odyssey?