The Mojave Phone Booth And All Its Friends: Call Now, Operators Standing By

It started as an art project. Blue spiral notebook in hand, Mark Thomas spent afternoons walking the streets of Manhattan, compiling the numbers and locations of public pay phones. He posted them on his Web site in the hope that people would call them.

'There is real beauty in whimsical acts of contact between strangers,' he explained. Soon his list expanded to include public phones at the top of the Eiffel Tower, in the basement of the Vatican, in the middle of the Mojave Desert, and at about 450,000 other places around the world.