If it's luxury you seek, there's only one logical direction to look: up. That's because the most opulent space in any hotel, apartment, or office tower is almost always the penthouse. Although they typically house celebrities, politicians, and senior business executives, chic penthouses aren't meant exclusively for wealthy guests. Because they're spacious and well serviced, they're also ideal for meeting and event groups, whose attendees increasingly are craving -- no, demanding -- unique meeting venues saturated with modern design, memorable details, and personal service. Penthouses definitely fit the bill. Here are five that are sure to leave attendees' mouths agape:The William Vale (Brooklyn, NY)
New York City has more of everything: more people, more restaurants, more attractions, and -- thanks to its dense urban landscape, which is saturated with block after block of skyscrapers -- more penthouses. One of its most noteworthy is the Vale Garden Residence in Brooklyn. Spanning nearly 3,000 feet across two floors, the suite features 1,320 square feet of indoor living space and a 1,632-square-foot fully furnished patio, the highlight of which is the open-air Jacuzzi with breathtaking views of Manhattan. Starting at $12,000 per night, its features include custom designer décor, hardwood floors, floor-to-ceiling windows, contemporary artwork by local and national artists, and a built-in bar that's fully stocked with top-shelf drinks and spirits.InterContinental Chicago Magnificent Mile (Chicago, IL)
The historic Executive Tower at InterContinental Chicago Magnificent Mile dates back to 1929, but the building feels as fresh as ever thanks to a $13 million makeover completed in 2015. The renovation included the hotel's bi-level Presidential Suite, which feels like a luxury home perched high above the Windy City. Located on the hotel's 35th and 36th floors, the residential-inspired suite totals 2,700 square feet and can host groups of up to 50 for a reception. It includes a master bedroom and bath, a media lounge, a library, a dining room, a living room, and kitchen. Large flat-screen TVs feature Apple TV and sound throughout is enhanced courtesy of Bose Cinemate Digital Theater Speakers and Jawbone Big Jambox Wireless Bluetooth Speakers. Rates start at $3,500 per night.Fairmont San Francisco Hotel (San Francisco, CA)
The Penthouse Suite at the Fairmont San Francisco Hotel is extraordinary. Spanning the entire eighth floor of the hotel's historic main building, it boasts 6,000 square feet, can accommodate up to 130 people, and costs $18,000 per night. It features three large bedrooms; four bathrooms; a living room with a fireplace, a stereo system, a plasma television, and a grand piano; a formal dining room for up to 60 people; a library with a secret passageway; a Persian-tiled billiard room; and a spacious outside terrace overlooking the city and the bay.Palms Casino, Resort & Spa (Las Vegas, NV)
You can gamble all you want in Vegas, but the Two Story Sky Villa at Palms Casino Resort is a sure bet. At 9,000 square feet and $40,000 per night, it's easily one of the largest and most expensive hotel suites in the world. The luxury apartment features a master bedroom with a round rotating bed and ceiling mirrors, a sunken bathtub behind beaded curtains, a personal glass elevator, a glass-enclosed cantilevered pool that extends beyond the balcony, private terraces, a massage room, a fitness room, a dry sauna, a media room with three TVs, and 24-hour butler service. Oh, and don't forget the views of the Strip, which shine bright through two stories of floor-to-ceiling windows.Oil Nut Bay (British Virgin Islands)
Big cities aren't the only ones with penthouses to brag about. Island and resort destinations also have their share of penthouse glory. Case in point: eco-friendly Oil Nut Bay in the British Virgin Islands, whose Cliff Penthouse Suite (pictured) is pure paradise. Although it's not the largest penthouse you've ever seen -- at 1,334 square feet, the one bedroom is small by penthouse standards -- it's easily among the most beautiful thanks to its designer FENDI Casa furnishings, its sumptuous soaking tub and outdoor shower, its full-size infinity pool, and its two fully retractable walls with floor-to-ceiling glass doors that facilitate indoor/outdoor living -- or, just as easily, meetings.