From ornate mansions to ocean views, this charming city - the largest in Maine - will enchant you. Saunter down the brick sidewalks and cobblestone streets of the revitalized Old Port District, where you can browse through bookstores, explore craft shops and eat to your heart's content. Visit the Portland Head Light, which dates back to 1791, and is the oldest lighthouse still in continuous use in the U.S. The great poet Henry Wadsworth Longfellow is the city's native son, and you can visit his childhood home, the Wadsworth-Longfellow House. With kids in hand, enjoy the highly interactive Children's Museum of Maine. And then go next door to the calmer Portland Museum of Art, a small, but eclectic museum with Impressionist works, Maine landscapes by Homer and Wyeth and other collections. Land or sea is an option here, so if you're tired of the street life, take one of the popular scenic cruises or whale watches, or hop on a ferry to the islands in Casco Bay. At the end of the day, and without kids in hand, unwind and rest your tired feet at one of the city's brewpubs.

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.

With its Romanesque architecture and cobbled lanes, hilltop Poitiers is a city steeped in history. Nonetheless, its lively student population and steady influx of theme park visitors ensure a thriving cultural scene and a centre brimming with galleries, restaurants, and terrace cafés.

Amsterdam is truly a biker’s city, although pedaling along the labyrinthine streets can get a little chaotic. Stick to walking and you won’t be disappointed. The gentle canals make a perfect backdrop for exploring the Jordaan and Rembrandtplein square. Pop into the Red Light District if you must—if only so you can say you’ve been there. The Anne Frank House is one of the most moving experiences a traveller can have, and the Van Gogh Museum boasts a sensational collection of works.