A dome-shaped ornamental structure located on top of a larger roof or dome.
A type of furnace used for smelting.
A solid formed by joining two polygons, one (the base) with twice as many edges as the other, by an alternating band of isosceles triangles and rectangles.
An upward-projecting mass of plutonic rock extending from a larger batholith.
A small cap over a structure that is shaped like a dome or inverted cup.
A small turret, usually on a hatch of an armoured fighting vehicle.
A lookout (vantage point with a view of the surrounding area)
A place where stars, planets and other celestial bodies are observed, usually through a telescope; also place for observing meteorological or other natural phenomena.