Heat seeking: where it's hot right now From £724 return with Virgin Atlantic. Based on cheapest May departures from all London airports. Hotel The Cosmopolitan hotel proves that what's newest is always what's hottest in Las Vegas as the Strip's youngest luxury casino resort. It's a vivacious destination, day or night. Three nights in a city room costs £477 from May 28-31. Package Three nights at the Quad Resort & Casino costs £819 per person, saving 15 per cent, with Virgin Holidays, departing Gatwick on June 6, with virginholidays.co.uk Read more Las Vegas city guide Milan Forecast Monday, 22C, mostly sunny; Tuesday, 22C, more sun than clouds. Milan's cultural charms may not be immediate, but once discovered they're greater than those found in Rome, Florence or Venice. Giovanna Bertazzoni - Christie's international head of Impressionist and Modern Art. Art-lovers can see Leonardo da Vinci's oeuvre in all its glory, from the notebooks he left detailing the workings of his art to his masterpiece, 'The Last Supper'. For any label lover Milan is the perfect shopping destination, but don't forget to sample the city's other obsession - food. Milan is also a city of long nights which start with never-ending aperitivi outside stylish bars. From £43 return with EasyJet or Ryanair. Stay at the Hotel Windsor Milano, a four-star property with a free soft drink minibar and free wifi, from £362 for a superior double room including breakfast, from May 20 - 23. See LateRooms.com. Three nights at the central, four-star Hotel City, in a double room on a b&b basis costs £425 per person, including flights from Heathrow, departing May 16 with Citalia. Lisbon Monday, 24C, mostly sunny; Tuesday, 21C, more sun than clouds. Go for the simple charm and maritime magic of a vintage-era Southern European capital. This dainty sun-kissed city lives in a Latin fairytale of timeworn manners and traditions. Just check out the century-old wooden trams and iron funiculars that still lurch and rumble their way among the seven steep hills over which this city lies. Or witness the best of this bygone heritage by wandering through the Baixa district, where age-old herbalists, haberdashers and tailors rub shoulders in the baroque streets of the ornate city centre." - Guyan Mitra, Lisbon expert. What to do Soak up some history at the dusk-orange walls of the ancient Castelo São Jorge or the imperious 15th-century Manueline monastery. Take the wooden tram 28 through Lisbon's prettiest streets or wander around the Museu Gulbenkian, which houses one of Europe's most epic collections. Flights From £118 return (EasyJet). Hotel The Hotel Bairro Alto is a bastion of luxury houses, with the hippest rooms in town. This grand, 19th-century building has been sensitively restored and offers old school charm blended with all the mod cons. Three nights in a Mansard double, from June 10 to 13, costs £571. Package Four nights at the four-star Turim Alameda hotel costs from £192 per person on a room-only basis. Based on a May 19 departure, including flights from Heathrow. See British Airways. Lisbon city break guide Orlando Monday, 27C, sunny; Tuesday, 30C, sunny. Orlando lives up to its name as the theme park capital of the world. It's a captivating place of elaborate fantasy, yet only the starting point on a journey that now encompasses eco-adventures and wildlife expeditions as well as a growing trend in outdoor pursuits, from kayaking and cycling to fishing and golf. And, while its core business remains the mass market, there is ever more luxury in hotels, spas and dining. Simon Veness - Florida expert. Not only are the theme parks works of art as well as great sources of excitement, Florida also has the landscapes and wildlife to appeal to nature-lovers. The obvious choices are Walt Disney World, Universal Orlando and SeaWorld but also see the Kennedy Space Center, Legoland Florida, the Ringling Estate & Museum and take a trip to the Everglades. From £290 return with Monarch. The Holiday Inn Lake Buena Downtown, in Florida, is a family-friendly Orlando hotel offering easy access to restaurants, shops and the Walt Disney World Resort. Three nights in a twin room costs £250, from May 22 - 25. Stay for seven nights at the four-star Radisson Resort Orlando, based in Kissimmee, 2.5 km from Walt Disney World, for £1010 per person, including a continental breakfast and flights from Gatwick on May 14, with British Airways. Florida travel guide