Culture-seekers will be charmed be La Isla's heritage and history, from Old San Juan's charms to folk art and festivals in the outlying towns. You can drive round Puerto Rico in a day, but take your time. Coffee plantations, colonial towns, beaches, bars and restaurants wait to be explored. Old San Juan, with famed Castillo de San Felipe del Morro, is an atmospheric place to wander. Experience life at a different pace by rainforest hiking, scuba diving or swimming Vieques' glowing bioluminescent lagoon.

Tamarindo is a prime spot for surfing and sportfishing, diving and sunning. Nesting leatherback turtles do their thing along the beaches from October to May and, for some nesting of your own, gorgeous beach houses, B&Bs and luxury hotels line the sunny sands. Shopping and dining options are superb and plentiful, perfect for sampling the true flavours of Costa Rica.

Seattle's petite downtown area and many attractions make it possible to pack a week’s experience into a weekend. Grab a latte and start at the world-famous Pike Place Market. Watch the fish fly and then head to the Space Needle for a dramatic view of the city and its surrounding waters. Return to earth and jump aboard a moonlit dinner cruise to Blake Island or canoe through the arbouretum.

Welcoming, tolerant Gran Canaria offers a little something for everyone. Families flock to the water parks and beaches of Puerto Rico. Those seeking peaceful escape scamper to Mogan's quiet fishing villages. Gay visitors crowd the bars, restaurants and beaches of Playa del Ingles. Urban attractions are on offer in Las Palmas. Three highways open up the island for those with a rental car or a bus schedule. Prime sites to visit include Iglesia de San Juan Bautista de Arucas and Palmalitos zoo park.

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.

Stroll Las Ramblas and enjoy Barcelona's unique blend of Catalan culture, distinctive architecture, lively nightlife and trendy, stylish hotels. You'll find Europe's best-preserved Gothic Quarter here, as well as amazing architectural works by Gaudi. La Sagrada Familia, considered Gaudi's masterpiece, is still under construction (your entrance fee helps to fund the project). Feel like a picnic? Look no further than the rambunctious La Boqueria market, where you can stock up on local delicacies.

We hear the question, "What’s the next Prague?" a lot. But while we’re all for discovering great new destinations, we hardly think Prague is over. Sure, everyone’s heard of it, but it’s still a grand city with extraordinary historic and cultural sights, and it’s definitely worth a visit. The often-rebuilt Prague Castle has overlooked the city since the 9th century, and the synagogues and cemetery of the Jewish Quarter are must-sees. Nightlife here is diverse and plentiful, from trendy clubs to sophisticated wine bars to late-night cellar bars.

Tallinn's atmospheric Old Town is an enthralling hotchpotch of medieval streets and spires. It's a small city, and the tourist areas are safe and easily explored on foot. Buy a Tallinn Card if you intend to use buses, trolleybuses or trams. For a look into Tallinn's past, visit Rocca-al-Mare Open Air Museum's typical rural Estonian taverns, windmills and watermills, see the onion-domed 1900 cathedral or join the bustle in historic Town Hall Square. St Olav's spire was once the tallest in the world.

Catania has been a prize of many empires over the centuries, from Greeks to Romans to Arabs to Normans to Spaniards (to name a few). But its citizens have a more dangerous enemy right in their backyard—Mount Etna, Europe's largest and most active volcano, which destroyed the city with earthquakes and lava flows in 1693. Look closely at the baroque buildings dating from after the eruption—you'll notice a creative use of lava.