As cities swell to the size of mini countries, a spectacular hotel rooftop has become a staple of cool hotels across the world.

Yes, we still love excellent service, extensive spa facilities and an exquisite restaurant -- but if you add a panoramic view of millions of pinpricks of light, winking skyscrapers and a neon glow, it's then we begin to feel (literally) on top of the world.

HuffPost UK Lifestyle asked hotel price comparison site Trivago to help us put together a list of the 10 most spectacular hotel rooftop terraces from across the globe.

From Dubai and London, to Bangkok and New York, here are the international hotels that have received exceptional reviews from travellers for their dizzying heights and breathtaking views of international cities.

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  • The Trafalgar Hilton Hotel

    <a href="http://www.trivago.co.uk/london-38715/hotel/the-trafalgar-hilton-47175">The Trafalgar Hilton Hotel</a> is an elegant four-star boutique hotel in London with an unbeatable location, impressive façade and spectacular interior. The hotel boasts 129 bedrooms, Spa service and the award-winning Rockwell bar and restaurant. The recently renovated ‘Vista’ bar is located on the sixth floor, offering unsurpassed views over Trafalgar Square, one of London’s most famous landmarks. The bar was designed to maximise the viewing area, using black and white tones to create a stylish and chic atmosphere. The drinks menu features champagne and cocktails prepared using English fruits, berries and herbs grown on the roof of the hotel. Visitors can enjoy their drinks whilst admiring Big Ben, the London Eye and other features on the London skyline.

  • The Trafalgar Hilton Hotel

  • The Trafalgar Hilton Hotel

  • The Grand Hotel Central

    <a href="http://www.trivago.co.uk/barcelona-31965/hotel/grand-hotel-central-99010">The Grand Hotel Central</a> is optimally located in El Born, Barcelona’s most fashionable district. The hotel dates back to 1926 but has been completely renovated, creating a refreshing combination of old and new. The impressively ornate exterior holds 147 guest rooms and suites decorated to create a stylish and relaxed ambience. The rooftop boasts 350 square metres of space and holds an elegant infinity pool. Guests can relax on the sun loungers or order a drink in the Skybar whilst enjoying views over the Catalonian city’s impressive skyline, containing the cathedral, Gothic quarter and much more.

  • The Grand Hotel Central

  • The Grand Hotel Central

  • The Grand Hotel Central

  • Jumeirah Beach Hotel (Dubai, United Arab Emirates)

    Dubai is renowned for its luxury hotels, and the <a href="http://www.trivago.co.uk/dubai-549/hotel/jumeirah-beach-8928">Jumeirah Beach Hotel</a> is no exception. Hotel amenities include a total of 617 rooms, 20 restaurants, a water park and a leisure centre offering climbing, scuba diving and much more. The Jumeirah is located directly on the beach and the impressive exterior is designed to look like a wave. This hotel offers the ultimate in stylish living, a concept which is captured by the Uptown Bar. Located on the 24th floor, Uptown Bar is Jumeirah’s most sophisticated bar, featuring tapas and an impressive cocktail menu. Visitors can enjoy spectacular views over Dubai’s striking skyline and the stunning Burj Al Arab hotel.

  • Jumeirah Beach Hotel (Dubai, United Arab Emirates)

  • Jumeirah Beach Hotel (Dubai, United Arab Emirates)

  • Jumeirah Beach Hotel (Dubai, United Arab Emirates)

  • The Marmara Pera (Istanbul, Turkey)

    <a href="http://www.trivago.co.uk/istanbul-32123/hotel/marmara-pera-80150">The Marmara Pera</a> is a design hotel in the trendy Pera district of Istanbul. Nearby attractions include historic Old Istanbul and charming Istiklal Street, a pedestrian mall. However, once you see the rooftop you may not want to leave this hotel. Boasting a beautiful pool and sun deck complete with sun-loungers and comfortable seating areas, this is the perfect place to soak up the sun and relax. Spread in front of you is a panoramic view over the entirety of Istanbul. The rooftop also contains an elegant restaurant and bar, featuring Turkish-Scandinavian cuisine, fine wines and inspiring music.

  • The Marmara Pera (Istanbul, Turkey)

  • The Marmara Pera (Istanbul, Turkey)

  • The Marmara Pera (Istanbul, Turkey)

  • Bairro Alto Hotel (Lisbon, Portugal)

    The <a href="http://www.trivago.co.uk/lissabon-50993/hotel/bairro-alto-34789">Bairro Alto</a> is ideally located between Lisbon’s bohemian Bairro Alto district and the chic and cultural Chiado district. This five star boutique hotel offers guests a harmonious blend of old and new, with modern design and amenities within a historic building. The BA Terrace can be found on the top floor of the hotel: a restaurant and bar enjoyed by travellers and locals alike. The terrace offers unbeatable views over the Lisbon rooftops and the Rio Tejo, which is most beautiful at sunset. On the menu is an appetising range of light meals and snacks, accompanied by the BA Terrace’s famous mojitos or iced tea.

  • Bairro Alto Hotel (Lisbon, Portugal)

  • Bairro Alto Hotel (Lisbon, Portugal)

  • Hotel Terrass (Paris, France)

    <a href="http://www.trivago.co.uk/paris-36103/hotel/terrass-49981">The Terrass Hotel</a> is the only four star hotel in the stylish district of Montmartre, Paris. Within walking distance is the Sacré Cœur, the Moulin Rouge and numerous art galleries and fashion boutiques. The hotel boasts 98 individually decorated rooms and suites to provide guests with ultimate comfort and luxury. The Terrass is aptly named after its focal point: the seventh floor terrace bar and lounge. Offering unsurpassed views over Paris, it is possible to see many of the city’s famous landmarks, including the Eiffel Tower. Guests can order light snacks or enjoy a cocktail or glass of champagne.

  • Hotel Terrass (Paris, France)

  • Hotel Terrass (Paris, France)

  • Hotel U Prince (Prague, Czech Republic)

    <a href="http://www.trivago.co.uk/prague-42695/hotel/u-prince-80459">Hotel U Prince</a> lies in the heart of Old Town Square, the historical centre of Prague and the busiest tourist district. The nearby streets are lined with shops, bars, cafes and restaurants. The hotel dates back to the 12th century, but has been renovated to offer guests modern comforts and luxuries, whilst preserving its traditional charm. The terrace restaurant offers superb cuisine and a panoramic view over Old Prague. Guests can enjoy the finest food and wine whilst enjoying views of the Old Town Hall, astronomical clock and the ornately gothic Týn Church – allegedly the inspiration behind the Walt Disney Castle!

  • Hotel U Prince (Prague, Czech Republic)

  • Hotel U Prince (Prague, Czech Republic)

  • Hotel Gansevoort (New York, USA)

    The Gansevoort is the only luxury full-service hotel in Manhattan’s vibrant Meatpacking district. Although New York City is not renowned for its rooftop pools, the Plunge Bar and pool at the Gansevoort is sublime in its design and location. The pool is heated for year-round use and features submerged lights and music for the ultimate underwater experience. <a href="http://www.trivago.co.uk/new-york-city-34812/hotel/gansevoort-8729"></a>The Plunge Bar and Lounge offers a barbeque grill menu, and the landscaped terrace allows guests to relax in a stylish setting whilst watching the sunset over the Hudson River. The rooftop boasts unique 360 degree views, containing all of New York City’s skyscrapers.

  • Hotel Gansevoort (New York, USA)

  • Hotel Gansevoort (New York, USA)

  • St. George Roma (Rome, Italy)

    In the heart of the historical centre of Rome and within walking distance of the Piazza Navona, Vatican Museums and Sistine Chapel lies the <a href="http://www.trivago.co.uk/rom-44337/hotel/st.-george-roma-153597">Hotel St. George Roma</a>. This luxury five star hotel offers guests a range of classic and deluxe rooms and suites to suit all budgets. After a busy day sightseeing, guests can relax in the St. George Spa, or enjoy a drink on the rooftop bar and restaurant. From this vantage point, visitors are able to see all the rooftops, domes and terraces of the Eternal City, whilst enjoying traditional Italian cuisine.

  • St. George Roma (Rome, Italy)

  • St. George Roma (Rome, Italy)

  • St. George Roma (Rome, Italy)

  • Lebua at State Tower (Thailand, Bangkok)

  • Lebua at State Tower (Bangkok, Thailand)

    This spectacular five star luxury hotel is located in the heart of Bangkok, on the banks of the Chao Phraya River. The hotel is housed within the Lebua State Tower, the second tallest tower in the Thai capital at 247 metres. <a href="http://www.trivago.co.uk/bangkok-519/hotel/lebua-at-state-tower-80675">Lebua</a> is an all-suite hotel, boasting a total of 357 suites up to 266 square metres in size. The hotel’s finest and most celebrated feature is the Sirocco restaurant. Situated on the 63rd floor of the State Tower, it is the world’s highest al fresco restaurant. Boasting quality Mediterranean cuisine, a Skybar and live jazz, it is the perfect place to watch the lights of Bangkok.

  • Lebua at State Tower (Bangkok, Thailand)

  • Lebua at State Tower (Thailand, Bangkok)