History of the world's tallest buildings to be tall, but its true height is not known. For thousands of years, the Great Pyramid in Egypt was the tallest "structure" in the world, but the Great Pyramid is not considered a building since it is not habitable. The earliest structures now known to be the tallest in the world were the Egyptian pyramids, with the Great Pyramid of Giza, at an original height of , being the tallest man-made structure in the world for over 3,800 years, until the construction of Lincoln Cathedral in 1300. From then until the completion of the Washington Monument (capped in 1884)
Douglas A. Munro Coast Guard Headquarters Building Douglas A. Munro Coast Guard Headquarters Building Douglas A. Munro Coast Guard Headquarters Building is the headquarters of the United States Coast Guard and is located in Washington, D. C. By the time of its foundation in 1915, U. S. Coast Guard headquarters shared space with its parent agency, United States Department of Treasury. In the same year, the U. S. Coast Guard moved to Munsey Trust Building, which was home up until 1919. In 1921 Bond Building became new building for headquarters. By the 1930s, U. S. Coast Guard Headquarters units were split into three venues – Treasury Annex,