==History==
[[File:0300.jpg|thumb|left|252px|Thomas Birch, ''Fairmount Water Works'', 1821.]]
In the discourse of landscape design, seat possessed two distinct yet equally prevalent meanings, as indicated by [[Thomas Sheridan]]’s 1789 dictionary entry. One sense referred to seat as a large estate, usually marked by a country house or mansion, for example, [[William Hamilton]]’s [[Woodlands]], near Philadelphia; or Gen. Charles Ridgely’s [[Hampton (Baltimore County, Md.)|Hampton]], in Baltimore County, Md. A seat was also a garden structure for sitting.
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