Athens

Fireworks explode over the ancient Parthenon temple at the Acropolis Hill, New Year celebrations in Athens, Greece (AP Photo)

Fireworks explode over the ancient Parthenon temple at the Acropolis Hill, New Year celebrations in Athens, Greece (AP Photo)

NYKiss

A couple share a kiss at the New Years Eve celebration, New York (AP Photo)

Berlin

Fireworks explode above the Quadriga on the Brandenburg Gate, New Year celebrations in Berlin, Germany (AP Photo)

London

Fireworks explode over Elizabeth Tower, New Year celebrations in London (AP Photo)

Fireworks explode over Elizabeth Tower, New Year celebrations in London (AP Photo)

Paris

Revelers celebrate the New Year on the Champs Elysee, Paris, France (AP Photo)

Pope-Benedict-XVI

Pope Benedict XVI holds the ostensory, New Year's Eve service, Vatican (AP Photo)

(AP Photo)

Sydney

Fireworks explode behind the Opera House, New Year celebrations in Sydney, Australia (AP Photo)

Trader

A trader wearing "Happy New Year" glasses works on the floor at the New York Stock Exchange, New York (AP Photo)

Couple-kiss-in-Times-Square

A couple share a kiss at the New Years Eve celebration in Times Square, New York (AP Photo)

A couple share a kiss at the New Years Eve celebration in Times Square, New York (AP Photo)

Reveler_in_Times_Square

A reveler cheers in Times Square for the New Years Eve celebration (AP Photo)

A reveler cheers in Times Square for the New Years Eve celebration (AP Photo)