Actress Emma Watson attends the World Premiere of Harry Potter and The Deathly Hallows – Part 2 at Trafalgar Square on July 7, 2011 in London, England. (Photo by Ian Gavan/Getty Images)

People dance Tuesday, April 28, 2015, in Baltimore. Maryland's governor vowed there would be no repeat of the looting, arson and vandalism that erupted Monday in some of the city's poorest neighborhoods. (Photo by Matt Rourke/AP Photo)

In this April 4, 2014 file photo, a community policeman kicks a man who they alledge participated in an ambush against them near the town of La Concepcion, Mexico. The vigilante force was set-up by affected communities opposed to the construction of the La Parota hydroelectric dam. Two vigilantes were injured and one died. (Photo by Bernandino Hernandez/AP Photo)

People sit near a fully loaded in Madama near the border with Lybia on January 1, 2015. French Defence Minister Jean-Yves Le Drian paid a surprise visit to northern Niger on January 1, to visit a base being built to combat the growing flow of weapons and jihadists from neighbouring Libya. Le Drian travelled from Chad to Madama, a desert outpost about 100 kilometres from Libya, where he saw in the New Year with troops at a French base. Madama is situated on the route used by jihadists and arms smugglers in southern Libya to reach northern Mali and Niger. (Photo by Dominique Faget/AFP Photo)

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.

Meet the real beach babes: the herd of pigs that live a life of luxury paddling in the crystal clear waters of the Bahamas, on August 28, 2013. (Photo by Caters News)

Beach Policeman, Potomac River, 1922. (Photo by National Photo Company/Colorized by Patty Allison)

Japanese college students look at cheerleaders during a job-hunting rally in Tokyo January 29, 2014. According to the rally organizers, about 1,500 students from vocational schools attend the rally to boost their morale ahead of their job hunt. (Photo by Yuya Shino/Reuters)