Architecture

Discover the world of architecture, inside out.

Upgrade to Britannica Online

Take a tour, New improved britannica online

Imagine Britannica's 32-volume encyclopedia online right there for you, plus full access to articles. Amazing content, written by world experts, that you can cite for projects and assignments.

Click here for Britannica shop

Diocletian window

Semicircular window divided into three lights (compartments) by two vertical mullions, with the central light usually wider than the two side lights. Its name comes from its use in the Baths of Diocletian in Rome (AD 302). It was revived in the 16th century by Andrea Palladio and others in the form of a window having an arched central light flanked by narrower, square-headed apertures, known as a Palladian or Venetian window.

Find more information on Diocletian window. Upgrade to Britannica Online for more on Diocletian window.

  • Get more

  • M?ss?ng more?

    Subscribers see 10 times more content. Just US $69.95 per year

  • Britannica, just as colourful as Hong Kong
  • Times may change, but insightful knowledge is still in demand. That's why Britannica brings a world of knowledge online, to Hong Kong. Have a look for yourself.