If you're spending some time in Downtown Reykjavik, Hallgrimskirkja and Reykjavik Free Church are top sights worth seeing.
Laugardalur is popular for its abundant dining options, and if you're looking for more to see and do, you might think about a trip to Laugardalslaug Geothermal Pool or Hofdi House.
When in Háaleiti, you can plan a visit to Kringlan Shopping Mall and Laugardalslaug Geothermal Pool, some noteworthy sights in the nearby area.
The abundant dining options and waterfront views are top of the list for many visitors to Vesturbær. A stop by Reykjavik Harbour or Landakotskirkja might round out your trip.
Though Hlíðar may not have many top sights, you can venture to the surrounding area to see attractions like Reykjavik Harbour and Perlan.