The Boetti maps, made mostly in the 1970s and '80s, fill in each country with as much of its flag as fits within its frontiers.
It works as a genuine state able to tax, and conscript and control the five or six million people who live within its frontiers.
Have you ever felt the need to step inside a painting and get lost within its frontiers?
It wages war, collects taxes, conscripts citizens into its army, defines the terms of trade, determines how well international and regional organizations work, and influences the lives of people who live within its frontiers more profoundly than anything on the outside does.
This year marks the first year that the festival is hosting a dedicated "VR palace" within its New Frontiers program.
Under Franco, Spain cut Gibraltar off by sealing its frontier.
To defend Múspell, Surtr is stationed at its frontier.
Despite the riches, the town never lost its frontier spirit.
Berlin, of course, is a city of monuments to a past that struck fear within and far beyond its frontiers.
The composition of its population has been changing rapidly since it lost control of its frontiers.
