Castle Howard trees and plants from across the world is set in a beautiful landscape of parkland, lakes and ponds. The charitable trust that runs the Yorkshire Arboretum also manages Ray Wood. The house is Grade I listed and there are many other listed structures on the estate, several of which are on the Heritage at Risk Register. In addition to its most famous appearance in film as Brideshead in both the 1981 television serial and 2008 film adaptations of Evelyn Waugh's novel "Brideshead Revisited", Castle Howard has been used as a backdrop for a number of other cinematic and television settings.
Howard County, Maryland Baltimore's Washington Monument was later erected and the neighborhood of Mount Vernon was developed in the 1820s. The lands of prehistoric Howard County were populated by Native Americans. The Maryland Historical Trust has documented sites along the Patapsco, Patuxent, Middle and Little Patuxent River valleys. In 1652, the Susquehannock tribes signed a peace treaty with Maryland, giving up their provenance over the territory that is now Howard County. In 1800, the mean center of U.S. population as calculated by the US Census Bureau was found in what is now Howard County. In 1838, Dr. William Watkins of Richland Manor proposed