Officers from the municipal authorities of Huaian city perform red songs at the Huaian Great Hall of the People on June 13, 2011 in Huaian, Jiangsu Province of China. This year's celebrations will mark the 90th anniversary of the founding of the Communist Party of China. (Photo by ChinaFotoPress/Getty Images)

Sports Illustrated Swimsuit model Alyssa Miller attends SI Swimsuit Launch Party Hosted by Crimson at Crimson on February 14, 2012 in New York City. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

With temperatures soaring and summer well underway, countless Americans will be spending their Independence Day weekend at the beach. Here we revisit some classic images from the turn-of-the-century to the 1930's of vacations by the sea, from Coney Island to Santa Monica.

A model walks the runway during the Neon Sao Paulo Fashion Week Spring/Summer 2013 Collections Show on June 14, 2012 in Sao Paulo, Brazil. (Photo by Fernanda Calfat)

A model walks the runway during the Jean Paul Gaultier Ready to Wear Spring / Summer 2012 show during Paris Fashion Week on October 1, 2011 in Paris, France. (Photo by Pascal Le Segretain/Getty Images)

Models showcase designs on the catwalk during the SCFASHION Qi Gang Spring/Summer 2012 show on the Fourth day of China Fashion Week Spring/Summer 2012 at the Banquet Hall, Beijing Hotel on October 27, 2011 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

When the city is in need, these superhero cats will do everything they can to help (i.e. look on indifferently then passive-aggressively poop on the bed).