The bug started off in the cache at Mary's Lake in Lawrence, Kansas, for obvious reasons to anyone who's seen the show.
(Or it tried to start off there and had to be relocated to a cache a couple blocks over because Mary's Lake was MIA)
The rest of the cities are in order by state/alphabetical city. Feel free to throw in pictures of any weird/unusual things the bug comes across on the way (mystery spots, haunted houses, etc) if you know about them and want to share a story. I am road tripping vicariously through you.
Locations that have been reached are marked with a XX. There's a map to track the bug's movement at http://g.co/maps/a27fk
Little Rock, Arkansas
Los Angeles, California
Palo Alto, California
San Francisco, California
Van Nuys, California
Grand Junction, Colorado
Monument, Colorado
River Pass, Colorado
Rock Ridge, Colorado
Cornwall, Connecticut
Pike Creek, Delaware
Broward County, Florida
Chicago, Illinois
Greenville, Illinois
Joliet, Illinois
Oak Park, Illinois
Pontiac, Illinois
Peoria, Illinois
Rockford, Illinois
Cicero, Indiana
Fort Wayne, Indiana
Lafayette, Indiana
Muncie, Indiana
New Harmony, Indiana
Bedford, Iowa
Davenport, Iowa
Otter Creek, Iowa
Sioux City, Iowa
Union, Kentucky
Waterville, Maine
Baltimore, Maryland
Ilchester, Maryland
Housatonic, Massachusetts
Detroit, Michigan
Saginaw, Michigan
Ypsilanti, Michigan
Blue Earth, Minnesota
Duluth, Minnesota
Hibbing, Minnesota
Windom, Minnesota
Greenwood, Mississippi
Cape Girardeau, Missouri
Carthage, Missouri
Jefferson City, Missouri
Kansis City, Missouri
St. Louis, Missouri
Red Lodge, Montana
XX - Alliance, Nebraska
Broken Bow, Nebraska
XX - Lincoln, Nebraska
Stratton, Nebraska
Highway 41, Nevada *Obviously not a city, but a picture of the road sign will suffice
Black Rock, New York
Maple Springs, New York
New Paltz, New York
Queens, New York
Canton, Ohio
Milan, Ohio
Springfield, Ohio
Toledo, Ohio
Wellington, Ohio
Garber, Oklahoma
Guthrie, Oklahoma
Ketchum, Oklahoma
Sapulpa, Oklahoma
Rivergrove, Oregon
Canonsburg, Pennsylvania
Catasauqua, Pennsylvania
Erie, Pennsylvania
Greeley, Pennsylvania
Nazareth, Pennsylvania
Philadelphia, Pennsylvania
Pittsburgh, Pennsylvania
Providence, Rhode Island
Shiloh County, South Dakota
XX - Sioux Falls, South Dakota
Richardson, Texas
Canaan, Vermont
Concrete, Washington
Fitchburg, Wisconsin
Medford, Wisconsin
Milwaukee, Wisconsin
Twin Lakes, Wisconsin
Cheyenne, Wyoming
Greybull, Wyoming
***BONUS CITIES***
These cities were made up, but if you can get a picture of the travel bug with something to do with the place (for example I googled it and there's a couple companies on Colorado called Blue Earth) that'd be awesome.
Atoka Valley
Jericho, California
Black Water Ridge, Colorado
Blue Earth, Colorado
Manning, Colorado
Burkittsville, Indiana
Salvation, Iowa
Elizabethville, Ohio
Oasis Plains, Oklahoma
Cold Oak, South Dakota
Lake Manitoc, Wisconsin
***Vancouver, Canada***
The show was filmed here. Extra bonus points if you can get pictures of the bug in an actual location a scene of the show was shot in.