This Week in Photos, Week of Jan 13-19, 2012

Desiree Davila holds an American flag after finishing the US Marathon Olympic Trials, with a time of 2:25:55, on Jan. 14 in Houston.

Participants ski in the 30th edition of the Belalp Witches Ski Race on Jan. 14 in Belalp, Switzerland. The race is inspired by a legend dating back to the Middle Ages, of a witch who tormented villagers in the area until she was burnt to death.

Queen Margrethe II of Denmark celebrates 40 years on the throne, at City Hall Reception.

Australian fans show their support as they arrive for Day 1 of the 2012 Australian Open Tennis Championships at Melbourne Park on Jan. 16 in Melbourne.

Models walk the runway at the Dimitri Autumn/Winter 2012 Fashion Show during Mercedes-Benz Fashion Week Berlin at the Brandenburg Gate on Jan. 18 in Berlin.

Riders compete on the road between the small towns of Templers and Freeling in South Australia during Stage 1 of the 2012 Santos Tour Down Under on Jan. 17 in Adelaide, Australia.

Dogs in costumes wait with their owners to be blessed outside San Anton Church in Madrid on Jan. 17. Hundreds of pet owners bring their animals to be blessed every year on the day of San Anton, Spain's patron saint of animals.

Ballerinas from the Paris Opera Ballet dance during full dress rehearsal for "Giselle" at Esplanade Theatre in Singapore.

George, 7, of Woodruff, SC, puts up a sign in preparation for a campaign stop by Republican presidential candidate and former US Sen. Rick Santorum at the Beacon Drive-In on Jan. 18 in Spartanburg, SC.

Jay Quinn of Gisborne, New Zealand, rides a wave during the Open Men's Quarter Final on Day 4 of the 2012 National Surfing Championships at Piha Beach, one of Auckland, New Zealand’s most famous west coast beaches.

The Indo-Tibetan Border Police (ITBP) personnel rehearse for the annual Republic Day parade in New Delhi.

A palm tree is covered in snow during a heavy snowfall in Victoria, British Columbia, on Jan. 17. A city that rarely sees any snow during their mild winter months has been blanketed in white over the last 2 days.

Christine Smith and Simon Eisbenbauer of Austria perform in the Ice Dance Free Dance Figure Skating during the Winter Youth Olympic Games on Jan. 17 in Innsbruck, Austria.

Folks gather at the Martin Luther King Jr. National Memorial, open for the first time on MLK Day.