Thanks to Blinn for the link to this excellent reference tool.
The Cities of Revelation web page is a tour of the seven cities of the book of Revelation.
"Revelation was first written for Christians living in seven cities in Asia Minor, in what today is the country of Turkey. The book was penned by a Christian named John, who had visions on the island of Patmos near the end of the first century A.D. Although many readers assume that Revelation contains coded predictions of the future, John first wrote to help Christians deal with matters of faith and life in the cities in which they lived. Knowing about these cities can help make Revelation's message more vivid, just as learning about life in Corinth, Philippi, and other places helps make Paul's letters come alive. This tour of the seven cities is designed to open the door into the world that was first addressed by Revelation's visions.