Berlin, GermanySwimmers stroke their way through the Berlin Triathlon, held annually in June. The swimming portion takes competitors through Treptower Park along the River Spree.

Photograph by Gerhard Westrich, laif/Redux

Week's Best Travel Photos: A Start to Summer

Get your dose of outstanding travel photos. This week: Start the Northern Hemisphere's summer off right with national parks and a splash in the river.

June 24, 2016

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