The story of young people, full of ambition, energy, skill and talent, moving to enticing cities that call to them like a siren’s song is as old as modern civilization. And in a world where national borders are easier to traverse, where more countries are joining the prosperous global middle class and where the cost of a one-way plane ticket is more affordable, young professionals probably have more cities to choose from than ever before.

This survey is not based solely on quality of life, number of trees or the cost of a month’s rent. Instead, we examine some cities that aim to be both smart and well managed, yet have an undeniably hip vibe. Our pick of cities that are, in a phrase, both great and good:

Auckland

With its beaches, inlets and lush coastal climate, the Kiwi metropolis has always had great natural beauty going for it (and, now, for the first time in 24 years, it is the home to the World Cup Rugby Champions). But we digress. Currently counting 1.5 million residents , the government is projecting the city to hit the two million-mark in just 30 years. The city has recently voted to create a new central core that mixes sustainable housing and mixed-use development.

The public transportation system, which includes subways, trams, busses and ferries, is constantly being expanded. Measures to increase the density of the urban landscape, meant to ultimately prevent encroachment on surrounding lands, as well as planting “green carpets” along urban roads demonstrate a keen eye toward creating a greener future. Plus, the city is expanding its free Wi-Fi coverage, according to a city official. Auckland is doing its best to “up their game with urban design,” said Angela Jones, a spokesperson for the city, turning a beautiful but provincial capital into a smart city.

Berlin

This culture capital combines low rents, a white-hot arts scene, good public transportation and myriad creative types — from media to design to technology — from all over the world. Known as Europe’s largest construction zone for at least 10 of the past 20 years, 4.4-million-strong Berlin has probably changed more in that time than any other large European city. And while the restaurants have become more expensive, the clothes are now more stylish and the D.J.’s have added more attitude, there is still plenty of real city left to be discovered by the thousands of artists and young professionals who move here every year to make this the pulsing center of Germany, the powerhouse of Europe.