From Shoreditch’s swaggering style to Camden’s punky vibe and chic Portobello Road, London is many worlds in one. The city’s energy means that no two days are the same. Explore royal or historic sites, tick off landmarks from your bucket list, eat and drink in exclusive Michelin-starred restaurants, enjoy a pint in a traditional pub, or get lost down winding cobbled streets and see what you stumble across – when it comes to London, the possibilities are endless.

Over 15 million gallons of water bubble daily into Budapest's 118 springs and boreholes. The city of spas offers an astounding array of baths, from the sparkling Gellert Baths to the vast 1913 neo-baroque Szechenyi Spa to Rudas Spa, a dramatic 16th-century Turkish pool with original Ottoman architecture. The "Queen of the Danube" is also steeped in history, culture and natural beauty. Get your camera ready for the Roman ruins of the Aquincum Museum, Heroes' Square and Statue Park, and the 300-foot dome of St. Stephen's Basilica.

Synagogues, mosques and churches stand together in Toledo's historic quarter, a testament to the medieval Spanish city's diverse history. The four towers of The Alcazar, a fortress built in 1085, dominate the skyline. Toledo and its surrounding countryside inspired El Greco, and his paintings are on display in many places around the city, including the museum that bears his name.

The town that gave the country (and port wine) its very name, Porto is Portugal’s second-largest metropolis after Lisbon. Sometimes called Oporto, it's an age-old city that has one foot firmly in the industrial present. The old town, centered at Ribeira, was built on the hills overlooking the Douro River, and today is a UNESCO World Heritage Site. The 14th-century São Francisco church is a main attraction, as are the local port wine cellars, mostly located across the river at Vila Nova de Gaia.

Containing a staggering wealth of historic sites, Turkey's inexpensive Aegean makes a marvellous introduction to both ancient and modern Turkey. Buses make easy connections between sites. Picturesque Bodrum boasts hopping nightlife, a crusader castle and the tomb of King Mausolus. The rest of the coast has Roman ruins and Byzantine remains aplenty, including Troy's walls, as well as the monument-strewn WWI battlefields of Gallipoli, the resort town of Kusadasi, fabulous surfing beaches and modern Izmir.

From family-friendly activities to professional sports, museums and galleries, Rochester has something for everyone. Enjoy the scenic Erie Canal, Genesee River and Lake Ontario. Don't miss the Strong National Museum of Play (America's second-largest children's museum) or the International Museum of Photography. Be sure to sample one of Rochester's famous ‘white hots’, Rochester's version of the hotdog! And don't miss the nearby Finger Lakes region, with its wine trails and gorges.

From the National Mall’s monuments and memorials to vibrant neighbourhoods filled with character and charm, DC is a world-class destination featuring breathtaking views, award-winning hotels and hundreds of free things to do. Experience outstanding performing arts at acclaimed theatres, shop in historic Georgetown, hear great live music at legendary venues, enjoy sporting entertainment from six professional franchises and be dazzled by a flourishing dining scene with Michelin-starred restaurants.

The north Indian city of Varanasi, or Benares, is regarded as sacred by Hindus, Buddhists and Jains. Situated in the fertile Ganga valley and on the banks of the Ganges, Varanasi is a place of pilgrimage for Hindus, who come to bathe in the holy river. Known as the City of Temples and a beacon of culture, Varanasi has produced many renowned writers. It’s also a centre of silk weaving, so practise haggling at the chaotic bazaar for some beautiful souvenirs. Rickshaws are the best way to get about.