These lines follow underwater mountains, where hot liquid rock flows up from deep inside the planet.

VOA: special.2010.01.12

Long lines stretch around the popular exhibits, with visitors forced to wait several hours to get a glimpse inside.

VOA: standard.2010.05.02

And when Stroup clicks inside the lines, he uncovers a hidden storehouse of information.

NPR: Crop Cops Take to the Sky

The lines inside will be much shorter and these agents are often able to find empty seats where nobody else can.

WSJ: What to do if you're stranded by American Airlines

Inside the greenhouse, lines of bright sodium lights shine down on the growing tomato plants, and the temperature remains a constant, warm 23C -- even in the depths of winter when outside temperatures drop well below freezing.

BBC: A local food scene burns in Iceland