Portage Park in Chicago is known for the flagstone decoration all over its grounds

Lauze stone in Lannion (Brittany)

Flagstone is a type of flat stone, usually used for paving slabs, but also for making fences or roofing. Portage Park is a 36 acre park in the Portage Park community area of Chicago Illinois on the National Register of Historic Places. Chicago (ʃɪˈkɑːgoʊ is the largest City by population in the state of Illinois and the American Midwest of the United States. Lannion (Lannuon is a commune in the Côtes-d'Armor department in Bretagne in northwestern France. Brittany (Breizh bʁejs Bretagne; Gallo: Bertaèyn) is a former independent Celtic kingdom and Duchy, now incorporated into In Geology, rock is a naturally occurring aggregate of Minerals and/or Mineraloids The Earth's outer solid layer the ‘ Lithosphere A sidewalk (chiefly North American English) pavement ( British English and Philadelphia dialect) footpath ( Australian English A fence is a freestanding structure designed to restrict or prevent movement across a boundary Vietnam roofjpg|thumb|The roofs of Vietnam.]] A roof is the covering on the uppermost part of a Building. It may also be used for making memorials or headstones in a cemetery. A headstone, tombstone or gravestone is a marker normally carved from stone, placed over or next to the site of a Burial A cemetery is a place in which dead bodies and cremated remains are buried. It also refers to Pennsylvania Bluestone, a stone from northeastern Pennsylvania and the southern tier of New York. Pennsylvania Bluestone is a layered Sandstone found only in the northeastern tier of Pennsylvania, parts of northern New Jersey and the southern tier of This is a sedimentary rock which is cut or split in layers for walkways and patios. Sedimentary rock is one of the three main rock types (the others being igneous and Metamorphic rock) A walkway is a composite or umbrella term for all formal surfaces supporting walking A patio (from the Spanish patio meaning 'back garden' or 'backyard' is an outdoor space generally used for dining or Recreation that often adjoins a It contains feldspar which gives it the blue color. Feldspar is the name of a group of rock-forming Minerals which make up as much as 60% of the Earth 's crust. Flagstone is a sandstone which makes the rock essentially quartz. Sandstone is a Sedimentary rock composed mainly of Sand -size Mineral or rock grains. Quartz (from German) is the most abundant Mineral in the Earth 's Continental crust (although Feldspar is more common in The material that binds flagstone is usually composed of silica, calcium, or iron oxide. The Chemical compound silicon dioxide, also known as silica or silox (from the Latin " Silex " is an Oxide Calcium (ˈkælsiəm is the Chemical element with the symbol Ca and Atomic number 20 Altogether there are sixteen known Iron Oxides and oxyhydroxides The color of the rock usually comes from the cementing material. Typical colors of flagstone are red, blue, buff, and there are exotic colors like chocolate. For other uses of the term see Buff Buff (colour Buff is a pale Yellow - Brown colour that got its name from the It is often used for patios, walkways, steps, fences, housing, fireplaces, and many construction projects.

Flagstones in the Middle Ages

Interior rooms of castles and other structures often used flagstones as flooring materials. A castle is a defensive structure seen as one of the main symbols of the Middle Ages. Numerous examples of buildings in Europe may be found that have surviving rooms of this form. For example, Lindisfarne Castle in England and Muchalls Castle (14th century) in Scotland have such flooring components. Lindisfarne Castle is a 16th-century Castle located on Holy Island, near Berwick-upon-Tweed, Northumberland, England, much altered England is a Country which is part of the United Kingdom. Its inhabitants account for more than 83% of the total UK population whilst its mainland Muchalls Castle stands overlooking the North Sea in the countryside of Kincardine and Mearns, Aberdeenshire, Scotland. Scotland ( Gaelic: Alba) is a Country in northwest Europethat occupies the northern third of the island of Great Britain.