Rotunda

Noun

1. A round building, usually small, often with a dome.
2. A Gothic typeface used in early printed books in Northern Italy, based on a rounded script developed in the 13th cent.; the manuscript hand on which this typeface was based.
3. Alternative spelling of rotonda.

   "TPLEX Rotunda is a roundabout located in Rosario, La Union."

4. A form of cupola that has pentagons rather than squares or rectangles.