Travel Forum / Travel Types / Air Travel / August 2008

I visited France, recently, and got two different kinds of stamps.
Upon entering, I got a stamp signifying that I had come in via ferry.
I tried to do a Google search for pictures similar to the stamp I got
and found these:

http://farm1.static.flickr.com/3/3822251_4eebf40436.jpg?v=0
http://www.istockphoto.com/file_thumbview_approve/5297921/2/istockphoto_5297921_
passport_stamp_from_copenhagen_denmark.jpg

They're not exact, but they're close.  The fact that those two, alone,
are different, makes me think that maybe the stamp for coming in via
sea has changed over time?  Or maybe different ships signify different
things?

Anyway, when I left, I got another stamp signifying that I was leaving
by train.  It looked like this:

http://www.flickr.com/photos/dcgreer/216373187/

Google searches suggest that all European Union passport stamps look
fairly similar.  My question is...  do all countries in the European
Union stamp your passport when you enter and again when you leave?
Also, what other types of stamps are there?  There are stamps for,
near as I can tell, entering / exiting via sea and entering / exiting
via train.  There's also a stamp for entering / exiting via plane
[1].  Are their stamps for walking from one country to another?  Are
there even places in Europe where you can legally do that?  What about
entering / exiting by car?

[1] http://static.flickr.com/110/299432999_a151964382.jpg