Throughout Europe.
Have FAA aznd JAA certificates issued in US and France respectively).
It is now fairly straightforward to fly throughout western Europe - the
Schengen laws make it poossible to craoss borders without going through
customs and police formalities (except Switzerland).

Many people in Europe fly "N" registered aircraft. The reason is the regs
allow a US-certificated pilot to fly under FAA regulations internationally in
an "N" registered aircraft. You talk about the FAA "lunatics" but many foreign
regulatory agencies are much more out of touch with general aviation. An
instrument rating, in particular, is very costly and complex to complete in
Europe for GA flyers. Many opt to do the IR in the US, then fly IFR in Europe
using an "N" registered aircraft. In Paris you'll find Barons, Seneca V's
Mooneys and King Airs for rent with "N" callsigns. . .