Castle Howard by Hawksmoor. The grounds of Castle Howard are also used as part of at least two charity running races during the year. Located on the Estate, but operating separately to the house and gardens and run by an entirely independent charitable trust, is the Yorkshire Arboretum. Originally created through the enthusiasm and partnership of George Howard (Lord Howard of Henderskelfe) and James Russell, over a period of eighteen years, from 1975 to 1992, it was opened to the public for the first time in 1999 and a new Visitor Centre opened in 2006.The arboretum's extensive and important collection of 6,000
Castle Howard of Henderskelfe. It is owned by Castle Howard Estate Ltd and run by Nicholas and Victoria Howard. In 2003, the grounds were excavated over three days by Channel 4's "Time Team", searching for evidence of a local village lost to allow for the landscaping of the estate. The 3rd Earl of Carlisle first spoke to William Talman, a leading architect, but commissioned Vanbrugh, a fellow member of the Kit-Cat Club, to design the building. Castle Howard was that gentleman-dilettante's first foray into architecture, but he was assisted by Nicholas Hawksmoor. Vanbrugh's design evolved into a Baroque structure with two symmetrical