The Empire State Building is a 102-story Art Deco skyscraper in Midtown Manhattan, New York City. Designed by Shreve, Lamb & Harmon and completed in 1931, the building has a roof height of 1,250 feet (380 m) and stands a total of 1,454 feet (443.2 m) tall, including its antenna. Its name is derived from "Empire State", the nickname of New York. As of 2017 the building is the 5th-tallest completed skyscraper in the United States and the 28th-tallest in the world. It is also the 6th-tallest freestanding structure in the Americas.
The Empire State Building, located on the west side of Fifth Avenue between West 33rd and 34th Streets, was originally part of an 18th century farm.
In the late 1820s, it came into the possession of the prominent Astor family, with John Jacob Astor's descendants building the Waldorf–Astoria Hotel on the site in the 1890s. By the 1920s, the family had sold the outdated hotel and the site indirectly ended up under the ownership of Empire State Inc., a business venture that included businessman John J. Raskob and former New York governor Al Smith. The original design of the Empire State Building was for a 50-story office building. However, after fifteen revisions, the final design was for 86 stories.
The final design was for a 86-story 1,250-foot building, with an airship mast on top. This ensured it would be the world's tallest building, beating the Chrysler Building and 40 Wall Street, two other Manhattan skyscrapers under construction at the time that were also vying for that distinction. Demolition of the Waldorf–Astoria began in October 1929, and the foundation of the Empire State Building was excavated before demolition was even complete. Construction on the building itself started on March 17, 1930, with an average construction rate of one floor per day.
The Space Needle is an observation tower in Seattle, Washington, a landmark of the Pacific Northwest, and an icon of Seattle. It was built in the Seattle Center for the 1962 World's Fair, which drew over 2.3 million visitors, when nearly 20,000 people a day used its elevators. Once the tallest structure west of the Mississippi River, it is 605 ft (184 m) high, 138 ft (42 m) wide, and weighs 9,550 short tons (8,660 tonnes). It is built to withstand winds of up to 200 miles per hour (89 m/s; 320 km/h) and earthquakes of up to 9.1 magnitude.
The Space Needle also has 25 lightning rods. It also has an observation deck at 520 ft (160 m) and the rotating SkyCity restaurant at 500 ft (150 m).
The downtown Seattle skyline, as well as the Olympic and Cascade Mountains, Mount Rainier, Mount Baker, Elliott Bay and surrounding islands can be viewed from the top of the Needle. Photographs of the Seattle skyline often show the Space Needle prominently above skyscrapers and Mount Rainier. Visitors can reach the top of the Space Needle by elevators that travel at 10 miles per hour (4.5 m/s; 16 km/h). The trip takes 41 seconds. On windy days, the elevators slow to 5 miles per hour (2.2 m/s; 8.0 km/h). The city's Landmarks Preservation Board designated it a historic landmark.
The architecture of the Space Needle is the result of a compromise between the designs of two men, Edward E. Carlson and John Graham, Jr. The two leading ideas for the World Fair involved businessman Edward E. Carlson's sketch of a giant balloon tethered to the ground (see the gently sloping base) and architect John Graham's concept of a flying saucer (see the halo that houses the restaurant and observation deck). Victor Steinbrueck introduced the hourglass profile of the tower. The Space Needle was built to withstand wind speeds double the requirements in the building code of 1962.
The Library of Congress (LOC) is the research library that officially serves the United States Congress and is the de facto national library of the United States. It is the oldest federal cultural institution in the United States. The Library is housed in three buildings on Capitol Hill in Washington, D.C.; it also maintains the National Audio-Visual Conservation Center in Culpeper, Virginia. The Library of Congress claims to be the largest library in the world. Its "collections are universal, not limited by subject, format, or national boundary..."
The Library of Congress moved to Washington in 1800 after sitting for 11 years in the temporary national capitals in New York City and Philadelphia.
The small Congressional Library was housed in the United States Capitol for most of the 19th century until the early 1890s. Most of the original collection had been destroyed by the British in 1814 during the War of 1812, and the library sought to restore its collection in 1815. They bought Thomas Jefferson's entire personal collection of 6,487 books. After a period of slow growth, another fire struck the Library in its Capitol chambers in 1851, again destroying a large amount of the collection, including many of Jefferson's books.
After the American Civil War, the Library of Congress grew rapidly in both size and importance, which sparked a campaign to purchase replacement copies for volumes that had been burned. The Library received the right of transference of all copyrighted works to deposit two copies of books, maps, illustrations, and diagrams printed in the United States. It also began to build its collections, and its development culminated between 1888 and 1894 with the construction of a separate, extensive library building across the street from the Capitol.
