The Mackinac Bridge is five miles long and crosses the Straits of Mackinac, connecting the upper and lower peninsulas of Michigan. It is the longest suspension bridge in North America.
Definition of plinth. 1a : the lowest member of a base : subbaseb : a block upon which the moldings of an architrave or trim are stopped at the bottom. 2 : a usually square block serving as a base; broadly : any of various bases or lower parts.
p. 38. definitions are necessary. A menhir is a rude monolith set up on end, a great single stone, the base of which is buried deep in the soil. A dolmen is a large, table-shaped stone, supported by three, four, or even five other stones, the bases of which are sunk in the earth.