bash - Spaces in Linux environmental variables?

Given directory: /media/foo/can haz/bar, I have tried editing bash.rc with:

export Foo=/media/foo/can haz/bar
export Foo=/media/foo/can\ haz/bar
export Foo='/media/foo/can haz/bar'
export Foo="/media/foo/can haz/bar"
export Foo='"/media/foo/can haz/bar"'
export Foo="'/media/foo/can haz/bar'"

Each time though, I couldn't get something like the following to work (without using "$Foo"):

cd $Foo

How do I set an environmental variable with spaces on a Linux system?