routing: Unescape urls

Hello All,

How to make rails unescape incoming urls? I want to use russian chars
in routes, like: URI.escape("/Карта–:title–:id"), :controller =>
"cities", :action => "show" It seems to works (page loads) but all
links on page looks like this:

Rails double escapes url?

Also I tried url_for(.... :escape => false), it doesn't help.

Thanks in advance,