Misc: what famous american house has a Red Room, a Green Room, a Blue Room and a Rose Room?

Questions

If Harry Enfield is Wayne Slob, who is Waynetta Slob?

What was the highest man-made structure at the start of the 20th Century?

Which part of the body is affected by phlebitis?

Whose face has Madonna got tattooed on her bottom?

Which creature did Oliver Reed have tattooed on his genitals?