This city is the headquarters of the scandal-ridden Bawag bank, and President Bush's order for states to uphold conventions made in this city was the focus of the recent Supreme Court case of Medellin v. Texas.  Its International Centre houses the International Atomic Energy Agency and the headquarters of OPEC.  This world 
This city is the headquarters of the scandal-ridden Bawag bank, and President Bush's order for states to uphold conventions made in this city was the focus of the recent Supreme Court case of Medellin v. Texas.  Its International Centre houses the International Atomic Energy Agency and the headquarters of OPEC.  This world capital is also home to Chancellor Alfred Gusenbauer and Federal President Heinz Fischer and formerly to rulers like Bruno Kreiskly.  For 10 points each, identify this site of a famous Congress held by Metternich, the capital of Austria.
This city is the headquarters of the scandal-ridden Bawag bank, and President Bush's order for states to uphold conventions made in this city was the focus of the recent Supreme Court case of Medellin v. Texas.  
{Vienna}, Austria