BIG BANGS London artist Sarah Pickering’s large-scale photographs are on display in “Explosions.”The series captures controlled, simulated explosions using pyrotechnics for British law enforcement training. The explosions were meant to re-create the look of explosions caused by napalm, firebombs, land mines, and other deadly materials. A previous series focused on the false-front “towns” used as disaster simulation training centers. Through Saturday, February 25, Tuesday-Saturday, 11 a.m.-6 p.m., Daniel Cooney Fine Art, 511 W. 25th St. at Tenth Avenue, no. 506, 212-255-8158, free.

ASKEW ARCHITECTURE Since 1989, artist Richard Greaves has been working on the development of a vast architectural environment located in a forest in the remote Beauce region of Quebec. The work is in a continuous state of expansion and is composed of about 20 shacks and shelters derived from abandoned barns Mr. Greaves disassembles and brings back to his site. The asymmetrical results resemble fun-houses or set pieces from a dark children’s film. He has also built a series of sculptures from objects salvaged from the scrap heap. Swiss photographer Mario del Curto’s large photographs of Mr. Greaves’s work are on display in “Richard Greaves: Anarchitect.” The exhibit also includes an audio environment designed by Stephane Mercier made from sounds recorded on Mr. Greaves’s site. Through Saturday, March 4, Tuesday-Saturday, 11 a.m.-6 p.m., Andrew Edlin Gallery, 529 W. 20th St., between Tenth Avenue and the West Side Highway, sixth floor, 212-206-9723, free.

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