Oliviers and Co. is a unique Boston market that specializes in a wide swath of Mediterranean foodstuffs, with a particular emphasis on olive oils. The showroom is practically a playground for anyone who wants to spend their afternoon sampling through vibrant, spicy, warming olive oils and accompanying balsamic vinegars. Bottled options for both vinegars and oils are near-endless, with versions that rely on infusions of basil, lemon, chili and cherries, among other flavors. Customers looking for a bit of take-home funk can grab a bottle of truffle oil, while patient workers are more than happy to discuss the characteristics of different oils. Though part of a chain, Oliviers and Co. feels like a cozy one-off shop, and its location on tony Newbury Street gives a bit of cred to the operation. The well-appointed store also sells spreads, pastas, tapenades and various unique gift items.