HOW DO I ZOOM IN?Try these experiments:
(1) Just after you've closed the Passport password window in TamaTown, move the mouse so it's not on a valid destination on the map. (Move the mouse to Gotchi Station.) Press your Tab key. Notice a yellow rectangle highlights a location. Press Tab again a couple more times. Notice the yellow rectangle moves from location to location. My theory is that these are the only locations you will be allowed to visit.
(2) Right click on the bank. Then select "Zoom In" from the popup menu. (For best results you can do this twice.) You can use the mouse when the pointer is an open hand, to drag the TamaTown map around. Notice that some buildings are out of focus, and others are in focus. My theory is that the ones that are in focus are valid locations you can (or will eventually be able to) visit, and the out of focus buildings are there just to fill in the blank spaces.