A gastropub is simply a bar serving food and drinks that surpass the sappy snacks usually proffered at such an establishment. Haven does just that. Technically, it is a self-billed "gastro-lounge," which means instead of a stuffy pub atmosphere, the room includes a thousand or so hue-changing ice-cube lights, a Siberian white-onyx bar that likewise changes color, and wraparound walls that immerse diners in HD-projected images of white-capped mountains, the Mediterranean, the South Beach skyline, and other scintillating scenes. On the beverage end, creative cocktails emanate a mist produced by liquid nitrogen (which is also used to blast and freeze ice cream by the order). Chef Todd Erickson's global mix of small plates clears that mist like sunlight bursting through clouds. Whether it be sashimi, ceviche, coconut-crusted rock shrimp with wasabi-peach marmalade ($15), or a "lamburger" slider with lavender, coriander, and honey ($11), the cuisine is electrically charged in flavor. It's a gastropub for the 21st Century and definitely for late-nighters: Haven is open nightly until 5 a.m.