Rome, round two? Skip the gladiator crowds and the selfie sticks in favour of some darker history, an adventure on the water and carbonara with the locals, not the tourist hordes.

You could return to Berlin a dozen times and never have a repeat experience.   This 'Second Time In...' itinerary balances Berlin's dark and complex history with outdoor attractions and a dive into the city's legendary - but less obvious - nightlife.

Back in Madrid? Ditch the Prado pilgrims and seek out lesser known but equally diverting attractions, whilst mingling with Madrileños for tapas that haven’t been Instagrammed to death. 

Second time around, swerve the strip and dive into Vegas' weird and wonderful attractions - zip lining, pinball and cocktails inside Bibles.  You might even have time to meet Evil Knievel.