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Tonight marks the opening ceremonies of the fourth annual FotoWeek D.C., a citywide photography event that exhibits works from local amateurs to international pros. This evening kicks off with a preview at Borders’ former L Street NW location (called FotoWeek Central for the festival’s purposes) and a dance party at the Corcoran Gallery of Art. But if you’d rather skip the scene-making, there’s plenty of time to absorb this year’s exhibits—some of which have already been open for a while. For a nature fix, there’s “Ocean Soul: Photographs by Brian Skerry” (a detail above) at National Geographic, which offers a broad look at undersea life, from purple-hued jellyfish gliding through light-streaked waters to a stomach-turning depiction of bycatch tossed back into the sea by a commercial fishing trawler. FotoWeek Central, meanwhile, offers a long list of documentary-skewing exhibitions and events, including the “World Press Photo Exhibition,” “Beyond Witness—New Approaches to Crisis Photography,” “The Nights of 9/11: Photographs by Hale Gurland,” “Facing Change: Documenting America,” and “Through The Lens of DC Youth.” Admirers of the hyperlocal should stop by the Joan Hisaoka Healing Arts Gallery for Tom Wolff’s U Street NW portraits, which capture the faces and personalities of the corridor’s inhabitants, proprietors, and passersby.

The FotoWeek D.C. launch party begins at 5 p.m. at FotoWeek Central, 1800 L St. NW; the dance party begins at 8:30 p.m. at the Corcoran Gallery of Art, 500 17th St. NW. $55 for both events.