An April Shower of New Exhibits

April usually brings a shower of exhibit openings in the U.S. and abroad, and this year is no exception. Some notable shows:

* Memphis: “Ancestors of the Incas: The Lost Civilizations of Peru,” at the Memphis Pyramid, is billed as the largest exhibit of Peruvian artifacts ever to travel to the U.S. It includes three mummies never seen outside Peru, and more than 300 artifacts spanning 3,000 years. Thursday to Sept. 16. Information: (800) 263-6744.

* Washington, D.C.: “Degas at the Races,” at the National Gallery of Art, is devoted to the French Impressionist’s fascination with horses. It includes more than 120 paintings, pastels, drawings and sculpted figures. Today to July 12. Information: (202) 737-4215.

* London: “The Power of the Poster,” at the Victoria and Albert Museum, covers 120 years of posters by Toulouse-Lautrec, Aubrey Beardsley, Saatchi & Saatchi and others drawn from the museum’s 10,000-piece collection--its largest such exhibit in six decades. Through July 26. Information: 011-44-171-938-8349.

* New York: Three galleries devoted to Edward Hopper, Georgia O’Keeffe and Alexander Caldwell are among eight newly opened in a major expansion of the Whitney Museum of American Art. More than 100 works from the museum’s permanent collection are displayed. Information: (212) 570-3676.

“Paul Robeson: Bearer of a Culture,” at the New-York Historical Society, explores the life of the African American artist and activist 100 years after his birth. Through July 12. Information: (212) 873-3400.