This mock village gives visitors an idea of what Abu Dhabi was like before the high-rise hotels and megamalls. The workshop area and museum are highlights. The former has stalls for everything from pottery and glass to leather, carpentry, spices, and perfumes. All the stalls sell their wares, and there's also a small marketplace near the entrance, though I didn't find anything other than cheap trinkets.
It's worth spending about 30 minutes here on your way to Marina Mall (the Heritage Village is on the outskirts of the mall, so you can easily walk over if the weather is pleasant). If you're in a taxi, tell them to take you to the large flag at the end of the Breakwater; otherwise, you might end up at a private condo complex with a similar name.