EVB2939370: President Obama drives a new Chevy Volt General Motor's plug-in hybrid electric vehicle during his tour of the General Motors Auto Plant in Hamtramck Michigan. July 30 2010. (BSWH_2011_8_158) / Bridgeman Images

EVB2939385: Caroline Kennedy Schlossberg visits President Obama in the Oval Office on March 3 2009 prompting his examination of the Resolute Desk for the panel through which her brother John F. Kennedy Jr. had played in 1963. (BSWH_2011_8_171) / Bridgeman Images

EVB2939394: World leaders relaxing before dinner at the G-8 Summit in L'Aquila, Italy, 2009 (photo) / Bridgeman Images

EVB2939463: President Obama and Indian Prime Minister Manmohan Singh during a State Dinner at the presidential palace New Delhi. Nov. 8 2010. (BSWH_2011_8_241) / Bridgeman Images

EVB2939466: President Obama greets Iraqi Prime Minister Maliki in the Oval Office on July 22 2009. (BSWH_2011_8_244) / Bridgeman Images

EVB2939469: President Obama talks with Israeli Prime Minister Benjamin Netanyahu in the Oval Office. May 18 2009. (BSWH_2011_8_247) / Bridgeman Images

EVB2939490: President Obama and Russian President Dmitry Medvedev sign a preliminary agreement to reduce American and Russian nuclear arsenals at the Kremlin. July 6 2009. (BSWH_2011_8_266) / Bridgeman Images

EVB2939547: President Obama meets with civil rights activist Al Sharpton and former Speaker Newt Gingrich to discuss education reform May 7 2009. Senior Political Advisor Valarie Jarrett is in the background. (BSWH_2011_8_317) / Bridgeman Images

EVB2939553: Students hold out their hands to greet President Obama during his visit to Dr. Martin Luther King Jr. Charter School in New Orleans. Oct. 15 2009. (BSWH_2011_8_322) / Bridgeman Images

EVB2939556: President Obama shakes hands following his speech on energy security at Georgetown University in Washington D.C. March 30 2011. (BSWH_2011_8_325) / Bridgeman Images

EVB2939577: President Obama and VP Biden applaud as they watch the passage of the health care reform bill in the House of Representatives. March 21 2010 (BSWH_2011_8_344) / Bridgeman Images

EVB2939589: President Obama meets with Senate Minority Leader Mitch McConnell in the Oval Office. Aug. 4 2010. (BSWH_2011_8_355) / Bridgeman Images

EVB2939604: President Obama presents the Medal of Honor to Staff Sergeant Salvatore Giunta for valor and saving the lives of his squad In Afghanistan in 2007. Nov. 16 2010. (BSWH_2011_8_369) / Bridgeman Images

EVB2939613: Michelle Obama helps paint a mural at a Youth Center and Health Clinic in San Salvador. March 22 2011. (BSWH_2011_8_42) / Bridgeman Images

EVB2939616: Michelle Obama looks at pictures of past Nobel Prize recipients at the Norwegian Nobel Institute in Oslo Norway Dec. 10 2009. (BSWH_2011_8_45) / Bridgeman Images

EVB2939619: President and Michelle Obama are serenaded by Beyonce at their first inaugural dance at the Neighborhood Ball. Jan. 20 2009. (BSWH_2011_8_48) / Bridgeman Images

EVB2939661: President Obama Communications Director Dan Pfeiffer David Axelrod and Robert Gibbs walk to a news conference in the Eisenhower Executive Office Building Dec. 22 2010. (BSWH_2011_8_86) / Bridgeman Images

EVB2937983: The Shasta dam under construction. It was, a New Deal project to provide irrigation, flood control and electricity to California's Central Valley. June 1942 photo by Russell Lee, Russell, Lee (1903-86) / Bridgeman Images

EVB2937989: Houses under construction at the Navy defense housing project for enlisted men in the Marines and Navy. San Diego, California. May 1941 photo by Russell Lee, Russell, Lee (1903-86) / Bridgeman Images

EVB2938097: Men walking on Dawson City's 'Riverside Drive,' in 1897 during the Yukon Gold Rush. The new street is lined with the town's first log and canvas structures / Bridgeman Images

EVB2938164: J. Edgar Hoover the director of the Federal Bureau of Investigation in 1948 publicity photograph / Bridgeman Images

EVB2938236: Aerial view of the cargo ship MARINE ANGEL the largest vessel to travel the Mississippi River and the Illinois Waterway as it rounds a bend in the Chicago River Chicago Illinois. 1953. LC-USZ62-119799 / Bridgeman Images

EVB2938239: Ocean liner passenger struggling thorough a Customs inspection at the Norddeutscher Lloyd pier in New York City. c. 1909 LC-DIG-ggbain-04208 / Bridgeman Images

EVB2938306: Passengers embark at Washington D.C. area airport in the 1930s. LC-DIG-hec-14557 / Bridgeman Images

EVB2938248: Cargo ships passing through the locks of the Sault Sainte Marie Canal which bypasses the rapids on the St. Marys River linking Lake Superior and Lake Heron. c. 1895. LC-D4-11306 / Bridgeman Images

EVB2938251: Print depicting 19 early steamships built between 1807 and 1815 including Robert Fulton's CLERMONT and NAUTILUS. lifeofrobertfult00reigrich_0024 / Bridgeman Images

EVB2938390: THE LAST SPIKE 1881 a painting by Thomas Hill depicts the ceremony held at Promontory Point Utah on May 10 1869 marking the completion of the transcontinental railroad. Among the crowd of notables Leland Stanford in center with hammer F.L. Vandenberg kneeling with gold spike Collis Potter Huntington behind and to right of Stanford and Charles Crocker in profile holding his hat standing to the right on two women / Bridgeman Images

EVB2938411: President Reagan riding his horse 'El Alamein' at his California home Rancho Del Cielo. April 8 1986. PO-USP-EQU-Reagan_NA-12-0073M / Bridgeman Images

EVB2938287: Car driving through passage way in a fallen tree in Sequoia National Park September 1957. LC-DIG-matpc-23254 / Bridgeman Images

EVB2938302: Louis Bleriot 1872-1936 seated in his 50 horse power mono-plane which is under construction in his workshop. LC-USZ62-107352, French Photographer, (20th century) / Bridgeman Images

EVB2938311: Orville Wright 1871-1948 at age 34 in 1905. LC-DIG-ppprs-00680 / Bridgeman Images

EVB2938187: Roy M. Cohn 1927-1986 formerly an assistant to Senator McCarthy during his anti-Communist crusades created controversy by his politics ethics and famous clients throughout his career. Cohn was a played by actor James Woods in the 1992 biopic CITIZE / Bridgeman Images

EVB2938353: Suspension Bridge spanning the Ohio River at Cincinnati was engineered and built by John A. Roebling. Opened in 1866 it was then the World's longest bridge. LC-DIG-ppmsca-08780_CROP / Bridgeman Images

EVB2938256: Small boats moored at water's edge to the Suez Canal at Ismailia. The Ismailia segment of the modern canal was completed in November 1862. 1860 photo by Francis Frith. LC-DIG-ppmsca-04470 / Bridgeman Images

EVB2938362: The New York City subway tracks at a station with a dark tunnel in the distance. 1904 LC-D4-17296 / Bridgeman Images

EVB2938286: A Washington D.C. parking lot on 14th Street charged 15 cents a hour in 1939. LC-USF33-015622-M2 / Bridgeman Images