Serena Williams had reason to smile this week, as she celebrated multiple victories during the US Open in the Big Apple. While sports fans flocked to NYC for the tennis tournament, the fashion world also gathered there for New York Fashion Week [1]. Elsewhere, President Obama chatted with a group of kids, Crown Princess Victoria of Sweden made a stylish appearance, and kitesurfers attempted to set a world record. See all that and more with the week's best photos from across the globe, then check out the week's can't-miss celebrity pics [2]!

Group Effort

A group of 352 kitesurfers set a new Guinness World Record for the most kitesurfers sailing together at once in Tarifa, Spain.

Big Grin

Crown Princess Victoria of Sweden showed off her flower power at the Junior Water Prize ceremony in Stockholm, Sweden.

Well Wishers

President Barack Obama shook hands with local schoolchildren when he arrived in Tallinn, Estonia, to meet with the country's president.

Fashion Fête

The style set gathered at Lincoln Center for the Mark and Estel runway show during New York Fashion Week.

City Sighting

Humpback whales were spotted off the coast of NYC's Rockaway Beach.

Political Trio

Secretary of State John Kerry had Hillary Clinton and Madeleine Albright cracking up at the ceremonial groundbreaking for the future US Diplomacy Center in Washington DC.

Fist Pump

Tennis champion Serena Williams celebrated during the women's singles third-round match during the US Open in NYC.