Marathon Gold City, also known as Tes Oros, is not your run-of-the-mill neighborhood jewelry store. Its elegant interior highlights a selection of jewelry, watches, gift items and accessories. Many of the items on display have been designed and manufactured in house, but there's also a small offering of other brands. The store sells pieces with colored gemstones, diamonds, silver, gold and platinum. It also does watch repairs along with battery and band replacement.