Anything out there that maps a website?

[Bob]

I have to look at some "less than ideal" websites. 

These are put together by some people who don't appear to know how to construct a simple, easy-to-understand-webpage.  Added on many time, etc. 

I have a feeling there are things hiding in the website. 


My question:
Is there anything out there, a program or a website function, that will "map" a website?  Then I could see the whole layout of the entire site that way.

I just don't want to look through these sites and then find out there was one link that went to an entirely separate, but elaborate, part of the site.

[morningstar]

www.ixacta.com
This one isn't bad and offers a free trial. What is actually in the trial I'm not sure though as I have the full version.