Istanbul sits on two continents and it feels like it. Three days covering the Old City mosques, the bazaars, a Bosphorus cruise, the Asian side food scene, and a proper Turkish bath, with the local tips that make the difference.

London has about fifteen different personalities depending on which neighborhood you're in. Three days covering the landmarks, the markets, the pubs, and the free museums that make London's cultural game unmatched.

Barcelona was made for a long weekend. Three days covering Gaudí, the Gothic Quarter, Barceloneta beach, and the food markets, with the restaurants and hidden viewpoints locals actually recommend.