1. National Museum of American History – Among the items on display is the original Star-Spangled Banner. The museum is part of the Smithsonian Institution and located on the National Mall at 14th Street and Constitution Avenue NW in Washington, the museum opened in 1964 as the Museum of History and Technology. It was one of the last structures designed by the architectural firm McKim Mead & White. In May 2012, John Gray was announced as the new director, the museum underwent an $85 million renovation from September 5,2006 to November 21,2008, during which time it was closed. Skidmore, Owings and Merrill provided the architecture and interior design services for the renovation, major changes made during the renovation include, A new, five-story sky-lit atrium, which is surrounded by displays of artifacts that showcase the breadth of the museums collection. A new, grand staircase that links the museums first and second floors, a new welcome center, and the addition of six landmark objects to orient visitors. New galleries, such as the Jerome and Dorothy Lemelson Hall of Invention, an environmentally controlled chamber to protect the original Star-Spangled Banner. In 2012, the museum began a $37 million renovation of the west wing to add new spaces, public plazas. The renovation will also include panoramic windows overlooking the National Mall on all three floors and new features to the exhibits. The first floor of the west wing reopened on July 1,2015 with the second and third floors of the west wing reopening in 2016 and 2017, each wing of the museums three exhibition floors is anchored by a landmark object to highlight the theme of that wing. These include the John Bull locomotive, the Greensboro, North Carolina lunch counter, landmarks from pre-existing exhibits include the 1865 Vassar Telescope, a George Washington Statue, a Red Cross ambulance, and a car from Disneylands Dumbo Flying Elephant ride. Artifact walls,275 feet of glass-fronted cases, line the first, the lower level of the museum displays Taking America to Lunch, which celebrates the history of American lunch boxes. The museums food court, the Stars and Stripes Café, the first floors East Wing has exhibits that feature transportation and technology, they include America on the Move and Lighting a Revolution. The John Bull locomotive is the signature artifact, the exhibits in the West Wing address science and innovation. They include Science in American Life featuring Robots on the Road, spark. Lab is a hands-on exhibit of the Lemelson Center for the Study of Invention and Innovation. The Vassar Telescope is the signature artifact, a café and the main museum store are also located on the first floor. The first floor contains the Constitution Avenue lobby, as well as a space for a temporary exhibit. The exhibitions in 2 East, the east wing of the floor, consider American ideals

2. American Museum of Natural History – The American Museum of Natural History, located on the Upper West Side of Manhattan, New York City, is one of the largest museums in the world. The museum has a scientific staff of 225, sponsors over 120 special field expeditions each year. Before construction of the present complex, the museum was housed in the Arsenal building in Central Park. Sherman, A. G. Phelps Dodge, William A. Haines, Charles A. Dana, Joseph H. Choate, Henry G. Stebbins, Henry Parish, the founding of the museum realized the dream of naturalist Dr. Albert S. Bickmore. Bickmore, a student of Harvard zoologist Louis Agassiz, lobbied tirelessly for years for the establishment of a natural history museum in New York. In 1874, the cornerstone was laid for the museums first building, the original Victorian Gothic building, which was opened in 1877, was designed by J. Wrey Mould, both already closely identified with the architecture of Central Park. The original building was eclipsed by the south range of the museum, designed by J. Cleaveland Cady. It extends 700 feet along West 77th Street, with corner towers 150 feet tall and its pink brownstone and granite, similar to that found at Grindstone Island in the St. Lawrence River, came from quarries at Picton Island, New York. The entrance on Central Park West, the New York State Memorial to Theodore Roosevelt and it leads to a vast Roman basilica, where visitors are greeted with a cast of a skeleton of a rearing Barosaurus defending her young from an Allosaurus. The museum is accessible through its 77th street foyer, renamed the Grand Gallery. The hall leads into the oldest extant exhibit in the museum, since 1930, little has been added to the exterior of the original building. The architect Kevin Roche and his firm Roche-Dinkeloo have been responsible for the planning of the museum since the 1990s. Various renovations both interior and exterior have been carried out including improvements to Dinosaur Hall and mural restoration in Roosevelt Memorial Hall, in 1992 the firm designed the new eight story AMNH Library. The museums south façade, spanning 77th Street from Central Park West to Columbus Avenue was cleaned, repaired and re-emerged in 2009, steven Reichl, a spokesman for the museum, said that work would include restoring 650 black-cherry window frames and stone repairs. The museums consultant on the latest renovation is Wiss, Janney, Elstner Associates, Inc. an architectural and engineering firm with headquarters in Northbrook, the museums first two presidents were John David Wolfe and Robert L. Stuart, both among the museums founders. The museum was not put on a sound footing until the appointment of the president, Morris K. Jesup. Jesup was president for over 25 years, overseeing its expansion, the fourth president, Henry Fairfield Osborn, was appointed in 1906 on the death of Jesup. Osborn consolidated the museums expansion, developing it into one of the worlds foremost natural history museums, F. Trubee Davison was president from 1933 to 1951, with A. Perry Osborn as Acting President from 1941 to 1946

3. United States – Forty-eight of the fifty states and the federal district are contiguous and located in North America between Canada and Mexico. The state of Alaska is in the northwest corner of North America, bordered by Canada to the east, the state of Hawaii is an archipelago in the mid-Pacific Ocean. The U. S. territories are scattered about the Pacific Ocean, the geography, climate and wildlife of the country are extremely diverse. At 3.8 million square miles and with over 324 million people, the United States is the worlds third- or fourth-largest country by area, third-largest by land area. It is one of the worlds most ethnically diverse and multicultural nations, paleo-Indians migrated from Asia to the North American mainland at least 15,000 years ago. European colonization began in the 16th century, the United States emerged from 13 British colonies along the East Coast. Numerous disputes between Great Britain and the following the Seven Years War led to the American Revolution. On July 4,1776, during the course of the American Revolutionary War, the war ended in 1783 with recognition of the independence of the United States by Great Britain, representing the first successful war of independence against a European power. The current constitution was adopted in 1788, after the Articles of Confederation, the first ten amendments, collectively named the Bill of Rights, were ratified in 1791 and designed to guarantee many fundamental civil liberties. During the second half of the 19th century, the American Civil War led to the end of slavery in the country. By the end of century, the United States extended into the Pacific Ocean. The Spanish–American War and World War I confirmed the status as a global military power. The end of the Cold War and the dissolution of the Soviet Union in 1991 left the United States as the sole superpower. The U. S. is a member of the United Nations, World Bank, International Monetary Fund, Organization of American States. The United States is a developed country, with the worlds largest economy by nominal GDP. It ranks highly in several measures of performance, including average wage, human development, per capita GDP. While the U. S. economy is considered post-industrial, characterized by the dominance of services and knowledge economy, the United States is a prominent political and cultural force internationally, and a leader in scientific research and technological innovations. In 1507, the German cartographer Martin Waldseemüller produced a map on which he named the lands of the Western Hemisphere America after the Italian explorer and cartographer Amerigo Vespucci

4. Washington Metro – The Washington Metro, known colloquially as Metro and branded Metrorail, is the heavy rail rapid transit system serving the Washington, D. C. metropolitan area in the United States. It is administered by the Washington Metropolitan Area Transit Authority, which also operates Metrobus service under the Metro name, besides the District, Metro serves several jurisdictions in Maryland and Virginia. In Maryland, Metro provides service to Montgomery and Prince Georges counties, in Virginia, to Arlington and Fairfax counties and the independent city of Alexandria. Combined with its ridership in the independent Virginia cities of Falls Church and Fairfax, the system is currently being expanded into Loudoun County, Virginia. It operates mostly as a subway in the District itself, while most of the tracks are at surface level or elevated. Opened in 1976, the network now includes six lines,91 stations, Metro is the second-busiest rapid transit system in the United States in number of passenger trips, after the New York City Subway. There were 215.3 million trips on Metro in fiscal year 2015, in June 2008, Metro set a monthly ridership record with 19,729,641 trips, or 798,456 per weekday. Fares vary based on the distance traveled, the time of day, Riders enter and exit the system using a proximity card called SmarTrip. Metro also has the distinction of having the longest, single-tier escalator in the Western Hemisphere in the Wheaton station, during the 1960s plans were laid for a massive freeway system in Washington. But the plan met fierce opposition, and was altered to include a Capital Beltway system plus rail line radials, the Beltway received full funding, funding for the ambitious Inner Loop Freeway system was partially reallocated toward construction of the Metro system. In 1960 the federal government created the National Capital Transportation Agency to develop a rail system. In 1966, a bill creating WMATA was passed by the government, the District of Columbia, Virginia. WMATA approved plans for a 98-mile regional system in 1968, the first portion of the system opened March 27,1976, with 4.6 miles available on the Red Line with five stations from Rhode Island Avenue to Farragut North, all in the District of Columbia. Underground stations were built with arches of concrete, highlighted by soft. The name Metro was suggested by Massimo Vignelli, who designed the subway maps for the New York City Subway, the 103-mile, 83-station system was completed with the opening of the Green Line segment to Branch Avenue on January 13,2001. This did not mean the end of the growth of the system, the first in-fill station, NoMa – Gallaudet University on the Red Line between Union Station and Rhode Island Ave-Brentwood, opened November 20,2004. Construction began in March 2009 for an extension to Dulles Airport to be built in two phases, the first phase, five stations connecting East Falls Church to Tysons Corner and Wiehle Avenue in Reston, opened on July 26,2014. Metro construction required billions of dollars, originally provided by Congress under the authority of the National Capital Transportation Act of 1969