Kutz Memorial Bridge

The John Paul Jones Memorial is a monument in West Potomac Park in Washington, D.C. The memorial honors John Paul Jones, the United States' first naval war hero, father of the United States Navy, the only naval officer to receive a Congressional Gold Medal during the American Revolutionary War, and whose famous quote "I have not yet begun to fight!" was uttered during the Battle of Flamborough Head.

The First National Jamboree was scheduled to take place from August 21 to August 30, 1935, to celebrate the Silver jubilee of the Boys Scouts of America who were founded on February 8, 1910. However, due to an outbreak of polio at the time in Washington, D.C. and the neighboring states, it was canceled and pushed back to 1936. Due to various factors, it was pushed one more year and finally took place from June 30 to July 9, 1937. 25,000 Scouts attended the event taking place on the National Mall at the foot of the Washington Monument using equipment loaned by the United States Army. It saw Scouts from all around the United States arriving by train as well as representatives of several foreign countries' scouting groups who traveled by boat and sometimes by foot. The event was celebrated by the entire city with Federal buildings being opened for visits, Mount Vernon offering daily visits, and many local residents volunteering their time. U.S. President Roosevelt took part in the celebration and a special message from Lord Baden-Powell was broadcast from London to the Scouts during the Jamboree calling for International Friendship. It was a display of American patriotism with American flags on display, the event taking place in the American capital in front of the White House and taking place the week of the 4th of July.

The Rainbow Pool was a reflecting pool located on the National Mall in Washington D.C., USA. It was designed by landscape architect Frederick Law Olmsted Jr., and was situated between the Lincoln Memorial Reflecting Pool (to the west), and 17th Street NW (to the east). The pool was renamed the Rainbow Pool on October 15, 1924, after it was noticed that its 124 nozzles created a "perfect rainbow" when turned on.In 2001 it was integrated into the National World War II Memorial, which features the pool located in roughly the same spot. The builders of the National World War II Memorial asserted that the memorial would not destroy the Rainbow pool; rather it would be sunk lower into the ground to better fit the structure of the World War II Memorial. This was a controversial development, as the Rainbow Pool has a central, visible location between the Washington Monument and Lincoln Memorial. The debate over the World War II Memorial's occupation of the space had to be resolved by legislation from the U.S. Congress in 2001 which allowed the building of the memorial to continue.

The Tidal Basin is a man-made reservoir located between the Potomac River and the Washington Channel in Washington, D.C. It is part of West Potomac Park, is near the National Mall and is a focal point of the National Cherry Blossom Festival held each spring. The Jefferson Memorial, the Martin Luther King Jr. Memorial, the Franklin Delano Roosevelt Memorial, and the George Mason Memorial are situated adjacent to the Tidal Basin. The basin covers an area of about 107 acres (43 ha) and is 10 feet (3.0 m) deep.

The World War II Memorial is a memorial of national significance dedicated to Americans who served in the armed forces and as civilians during World War II. Consisting of 56 pillars, representing U.S. states and territories, and a pair of small triumphal arches for the Atlantic and Pacific theaters, surrounding an oval plaza and fountain, it sits on the National Mall in Washington, D.C., on the former site of the Rainbow Pool at the eastern end of the Reflecting Pool, between the Lincoln Memorial and the Washington Monument. Its initial design was submitted by Austrian-American architect Friedrich St. Florian. Opened on April 29, 2004, it was dedicated by President George W. Bush on May 29, 2004. The memorial is administered by the National Park Service under its National Mall and Memorial Parks group. More than 4.6 million people visited the memorial in 2018. The memorial consists of 56 granite pillars, each 17 feet (5.2 m) tall, arranged in a semicircle around a plaza with two 43-foot (13 m) triumphal arches on opposite sides. Two-thirds of the 7.4-acre (3.0 ha) site is landscaping and water. Each pillar is inscribed with the name of one of the 48 U.S. states of 1945, as well as the District of Columbia, the Alaska Territory and Territory of Hawaii, the Commonwealth of the Philippines, Puerto Rico, Guam, American Samoa, and the U.S. Virgin Islands. The northern arch is inscribed with "Atlantic"; the southern one, "Pacific." The plaza is 337 ft 10 in (102.97 m) long and 240 ft 2 in (73.20 m) wide, is sunk 6 feet (1.8 m) below grade, and contains a pool that is 246 feet 9 inches by 147 feet 8 inches (75.2 m × 45.0 m).The memorial includes two inconspicuously located "Kilroy was here" engravings. Their inclusion in the memorial acknowledges the significance of the symbol to American soldiers during World War II and how it represented their presence and protection wherever it was inscribed.On approaching the semicircle from the east, a visitor walks along one of two walls (right side wall and left side wall) picturing scenes of the war experience in bas relief. As one approaches on the left (toward the Pacific arch), the scenes begin with soon-to-be servicemen getting physical exams, taking the oath, and being issued military gear. The reliefs progress through several iconic scenes, including combat and burying the dead, ending in a homecoming scene. On the right-side wall (toward the Atlantic arch) there is a similar progression, but with scenes generally more typical of the European theatre. Some scenes take place in England, depicting the preparations for air and sea assaults. The last scene is of a handshake between the American and Russian armies when the western and eastern fronts met in Germany.

The Babcock Lakes (38.8901119°N 77.0385880°W / 38.8901119; -77.0385880) were a series of water ponds formerly located near the Washington Monument in Washington, D.C., before the area became the National Mall. In 1878, they were designated as fisheries by the United States Fish Commission, in an effort to increase availability of commercial fish in America. While extant, the lakes played a key role in introducing carp into the United States. By 1896, some 2.4 million carp had been distributed from the lakes to restock fish supplies in both North and South America.By 1911, the lakes had been covered by land dredged from the Potomac River in the expansion of West Potomac Park.

Tiber Creek or Tyber Creek, originally named Goose Creek, is a tributary of the Potomac River in Washington, D.C. It was a free-flowing creek until 1815, when it was channeled to become part of the Washington City Canal. Presently, it flows under the city in tunnels, including under Constitution Avenue NW.

Ripps Island was an island located in the Potomac River in the northwest quadrant of Washington, D.C., in the United States. It was located at the mouth of Tiber Creek, in the vicinity of today's Constitution Gardens.

Jefferson Pier, Jefferson Stone, or the Jefferson Pier Stone, (pronounced pie-er, like radials of a pie) in Washington, D.C., marks the second prime meridian of the United States even though it was never officially recognized, either by presidential proclamation or by a resolution or act of Congress.

The District of Columbia War Memorial commemorates the citizens of the District of Columbia who served in World War I. Located on the National Mall, it was constructed in 1931 as a domed, peristyle Doric temple.

The Washington Monument is an obelisk within the National Mall in Washington, D.C., built to commemorate George Washington, once commander-in-chief of the Continental Army (1775–1784) in the American Revolutionary War and the first President of the United States (1789–1797). Located almost due east of the Reflecting Pool and the Lincoln Memorial, the monument, made of marble, granite, and bluestone gneiss, is both the world's tallest predominantly stone structure and the world's tallest obelisk, standing 554 feet 7+11⁄32 inches (169.046 m) tall according to the U.S. National Geodetic Survey (measured 2013–14) or 555 feet 5+1⁄8 inches (169.294 m) tall, according to the National Park Service (measured 1884). It is the tallest monumental column in the world if all are measured above their pedestrian entrances. Overtaking the Cologne Cathedral, it was the tallest structure in the world between 1884 and 1889, after which it was overtaken by the Eiffel Tower in Paris. Construction of the presidential memorial began in 1848 and was halted for a period of 23 years, from 1854 to 1877 due to a lack of funds, a struggle for control over the Washington National Monument Society, and the American Civil War. Although the stone structure was completed in 1884, internal ironwork, the knoll, and installation of memorial stones were not completed until 1888. A difference in shading of the marble, visible approximately 150 feet (46 m) or 27% up, shows where construction was halted and later resumed with marble from a different source. The original design was by Robert Mills (1781–1855) of South Carolina, but he did not include his proposed colonnade due to a lack of funds, proceeding only with a bare obelisk. The cornerstone was laid on July 4, 1848; the first stone was laid atop the unfinished stump on August 7, 1880; the capstone was set on December 6, 1884; the completed monument was dedicated on February 21, 1885; and officially opened October 9, 1888. The Washington Monument is a hollow Egyptian style stone obelisk with a 500-foot (152.4 m) tall column surmounted by a 55-foot (16.8 m) tall pyramidion. Its walls are 15 feet (4.6 m) thick at its base and 1+1⁄2 feet (0.46 m) thick at their top. The marble pyramidion has thin walls only 7 inches (18 cm) thick supported by six arches, two between opposite walls that cross at the center of the pyramidion and four smaller corner arches. The top of the pyramidion is a large marble capstone with a small aluminum pyramid at its apex with inscriptions on all four sides. The lowest 150 feet (45.7 m) of the walls, constructed during the first phase 1848–1854, are composed of a pile of bluestone gneiss rubble stones (not finished stones) held together by a large amount of mortar with a facade of semi-finished marble stones about 1+1⁄4 feet (0.4 m) thick. The upper 350 feet (106.7 m) of the walls, constructed during the second phase 1880–1884, are composed of finished marble surface stones, half of which project into the walls, partially backed by finished granite stones.The interior is occupied by iron stairs that spiral up the walls, with an elevator in the center, each supported by four iron columns, which do not support the stone structure. The stairs contain fifty sections, most on the north and south walls, with many long landings stretching between them along the east and west walls. These landings allowed many inscribed memorial stones of various materials and sizes to be easily viewed while the stairs were accessible (until 1976), plus one memorial stone between stairs that is difficult to view. The pyramidion has eight observation windows, two per side, and eight red aircraft warning lights, two per side. Two aluminum lightning rods, connected via the elevator support columns to ground water, protect the monument. The monument's present foundation is 37 feet (11.3 m) thick, consisting of half of its original bluestone gneiss rubble encased in concrete. At the northeast corner of the foundation, 21 feet (6.4 m) below ground, is the marble cornerstone, including a zinc case filled with memorabilia. Fifty American flags fly on a large circle of poles centered on the monument. In 2001, a temporary screening facility was added to the entrance to prevent a terrorist attack. An earthquake in 2011 slightly damaged the monument, and it was closed until 2014. It was closed again for elevator system repairs, security upgrades, and mitigation of soil contamination from August 2016 to September 2019.

The Martin Luther King, Jr. Memorial is a national memorial located in West Potomac Park next to the National Mall in Washington, D.C., United States. It covers four acres (1.6 ha) and includes the Stone of Hope, a granite statue of Civil Rights Movement leader Martin Luther King Jr. carved by sculptor Lei Yixin. The inspiration for the memorial design is a line from King's "I Have a Dream" speech: "Out of the mountain of despair, a stone of hope." The memorial opened to the public on August 22, 2011, after more than two decades of planning, fund-raising, and construction.This national memorial is the 395th unit in the United States National Park Service. The monumental memorial is located at the northwest corner of the Tidal Basin near the Franklin Delano Roosevelt Memorial, on a sightline linking the Lincoln Memorial to the northwest and the Jefferson Memorial to the southeast. The official address of the monument, 1964 Independence Avenue, S.W., commemorates the Civil Rights Act of 1964.A ceremony dedicating the memorial was scheduled for Sunday, August 28, 2011, the 48th anniversary of the "I Have a Dream" speech that Martin Luther King Jr. delivered from the steps of the Lincoln Memorial in 1963 but was postponed until October 16 (the 16th anniversary of the 1995 Million Man March on the National Mall) due to Hurricane Irene.Although this is not the first memorial to an African American in Washington, D.C., King is the first African American honored with a memorial on or near the National Mall and only the fourth non-President to be memorialized in such a way. The King Memorial is administered by the National Park Service (NPS).