If nadia feels like austria

Hey, I was wondering if anyone has any opinions on what there is to see around Austria? I’m interested in seeing vienna and maybe some of the surrounding countryside but don’t know much about the area.

Also has anyone had any experience renting bikes around the Rhine river? I’ve heard that it’s nice to bike up and down the river but don’t know if it’d be more fun to go on a ferry tour instead.

Most major cities have loads of bike rental places. Mike’s Bike Tours is a big one in europe.