Globe-trotting millennials know that they don't need to box themselves in the U.S. when it comes to choosing where to live. A recent study revealed that the best cities in the world for them to live in reflect traits that lie close to the heart of the millennials.

The largest generation in history is growing older and exploring the world in search for that perfect city to live in. Enter apartment-searching website Nestpick into the picture. The company released a study "Millennials Cities Ranking" where it scored thousands of places just to come up with the list of the best cities for millennials to live in.

Top on the list comes Amsterdam, Netherlands. Millennials still consider the Dutch city one of the coolest, if not the coolest in the world. Its "tolerant, open and live-and-let-live mindsets" make it LGBT friendly and the spot for all things cool. Germany's Berlin and Munich follow behind at the second and third place, respectively. Berlin's nightlife makes it one of the world's best cities for Millennials to live in, according to Forbes.

Next on the top 10 list are Lisbon, Portugal; Antwerp, Belgium; Barcelona, Spain; Lyon, France; Cologne, Germany; Paris, France and Vancouver, Canada. The study also revealed that U.S. cities barely made it to the list of the world's best cities for millennials to live in. Austin, Texas came in at 41 for its internet speed, San Francisco, California made it to the 45thspot for its startup culture and Denver, Colorado came at the tail end at No. 50.

Nestpick considered in its study of the world's best cities for millennials to live in 16 key factors. These include employment score, internet speed, LGBT-friendliness, immigration tolerance, startup scene, nightscene, beer and access to Apple stores among others. Nestpick Managing Director Ömer Kücükdere said, "Millennials travel more at a younger age than any of their preceding generations; this gives them the possibility to find the perfect city for their personal needs." He also noted that the nomadic millennials "will not stay long in a location that doesn't match their criteria."