Capsule: A gated 44-acre island only a few hundred feet (and a few minutes walk) offshore from fashionable Brickell Avenue and downtown Miami, Brickell Key's luxury condos offer stunning views over the Biscayne Bay toward Miami Beach and Key Biscayne. Brickell Key also has a smattering of shops and restaurants (as well as a Mandarin Oriental Hotel), and the island has a path around its perimeter that provides joggers with great views.