This monstrosity was constructed in 1972 and consists of 5 mini roundabouts inside of a single, larger roundabout.  Imagine if this was built somewhere in West Michigan.  You could pull up a lawn chair and watch accidents for days.  In 2009 the roundabout (if that is what you want to call it) was voted the 4th scariest junction in Britain.  However despite it's scary appearance, it still has an excellent safety record due to traffic moving too slow to make any accidents too dangerous.

[Wikipedia Source]