Rock Bar, Ayana Resort & Spa (Bali, Indonesia) – Guests ride a special cable car down a dramatic cliff face to arrive at the brilliantly engineered Rock Bar, perched 46 feet above the Indian Ocean.
Hassler Bar, Hotel Hassler Roma (Rome) – What to drink: Its signature Veruschka, a mix of pomegranate juice and sparkling Italian wine, said to be Princess Diana's favorite when visiting here.
Red2One, W Santiago (Santiago, Chile) – Co-designed by New York's Tony Chi, you could be fooled into thinking this sleek rooftop bar is in Midtown Manhattan -- if it weren't for the views over the snow-capped Andes. Throw in beautiful cocktails and A-list clientele and you have the most exclusive bar in Santiago.
Blu Bar on 36, Shangri-La Hotel in The Rocks (Sydney) – Set on the 36th floor of the Shangri-La, Blu Bar offers striking panoramas of Darling Harbour, Sydney Harbour Bridge and the Opera House.
The Bar, The Merchant Hotel (Belfast, Northern Ireland) – What to drink: The Fog Cutter, a potent blend of cognac, rum, gin, sherry and citrus juices.
House Without a Key, Halekulani Hotel (Honolulu) – Every night at House Without a Key guests enjoy live ukulele music beneath the gently swaying branches of a sprawling kiawe tree.
Lobby Bar, Alvear Palace Hotel (Buenos Aires, Argentina) – There's no more elegant place for a drink in Buenos Aires than Alvear Palace's iconic Lobby Bar, where businessmen and celebrities have socialized since 1932.
Sky Bar, Lebua at State Tower (Bangkok) – Made famous by its appearance in "Hangover II," Sky Bar's deck offers electric views of the Bangkok skyline and Chao Phraya river.
Connaught Bar, The Connaught (London) – The Connaught Hotel's signature bar is a triple threat: killer cocktails, prime London address and architectural style.
New York Bar, Park Hyatt (Tokyo) – On the Park Hyatt's 52nd floor, the New York bar is renowned for breathtaking views over Tokyo, nightly jazz, sophisticated ambiance and a "Lost in Translation" cameo people still come to relive.
Chandelier Bar, Cosmopolitan Las Vegas – What to drink: The Infinite Playlist, a modern twist on the old fashioned.
Uptown Bar, Jumeirah Beach Hotel (Dubai, UAE) – What to drink: The Berry Cassis, a blend of vodka, creme de cassis and raspberries, topped with champagne.
Bemelmans Bar, Carlyle Hotel (New York) – The most interesting aspect of Bemelmans may be the wall art by Ludwig Bemelmans, the creator of the Madeline books and the bar's namesake.
The Roof, ME Madrid – Carved into a broken stone wall, decked out in leather and metal and illuminated by purple mood lighting, this bar feels sort of Vegas -- but with sweeping views over Spain's capital.
Sky Yard, Drake Hotel (Toronto) – Sky Yard's theme, decor, art installations, music and drink menu change every few months.
Level 8, Hyatt Regency Dar Es Salaam, The Kilimanjaro (Dar es Salaam, Tanzania) – Being Dar es Salaam's only rooftop bar, Level 8 is the spot to watch the sun set over the Indian Ocean.
M Bar, Mandarin Oriental (Hong Kong) – What to drink: The signature Hong Kong Legend, a blend of vodka, lychee, lime and cassia wine.
The Library Bar, Central Hotel (Dublin) – Located behind the lobby of the Central Hotel, the Library Bar feels like a secret hideaway.
Blue Bar, Taj Palace (New Delhi) – Built on the perimeter of the Taj Palace, directly facing its quiet, sprawling gardens, Blue Bar is tranquil and hidden -- yet unmistakably hip.
Elephant Bar, NoMad Hotel (New York) – Decked out in dark mahogany and leather, with a speakeasy feel, the Elephant Bar is one of the most handsome bars in New York.
Le Bar, Four Seasons Hotel George V (Paris) – With its dramatic chandeliers, mahogany-paneled walls and red velvet couches, Le Bar's grandeur is reminiscent of a bygone era.
O2 Lounge, The Ritz-Carlton Moscow – This bar is located on the top floor of the Ritz-Carlton Moscow and has spectacular views over Red Square, the Kremlin, Spasskaya tower and the Cathedral of Christ the Savior.
Nalu Kai Bar, St. Regis Princeville Resort (Kauai, Hawaii) – Nalu Kai pairs barefoot appeal with strong drinks and views over Hanalei Bay, Pu'u Poa Beach and Bali Hai.
Sazerac Bar, Roosevelt Hotel (New Orleans) – Classic drinks like the Ramos gin fizz, negroni and old fashioned are served by white-coated wait staff.
Icebar by Icehotel (Jukkasjarvi, Sweden) – While the Icebar has popular outposts in Stockholm, Oslo and London, the Jukkasjarvi version remains the most impressive and authentic.
The Bar, Four Seasons Hotel Gresham Palace (Budapest, Hungary) – Every evening, guests are treated to live piano music as martinis and smart cocktails are served in ornately patterned glassware.
Champagne Room, The Connaught (London) – Accessed via a velvet curtain, the tucked-away bar is illuminated by an overhead skylight and has lustrous brass, leather accents and limestone floors.