A helicopter whirred overhead and police were stationed at all entrances to Oslo's City Hall for hours before the Nobel Peace Prize ceremony got underway at 1pm. Commando vans and police cars were parked all over downtown, and plain-clothes security guards were also out in force.

December 10th is always a big day in Oslo, because that's the day set aside every year for the actual awarding of the Peace Prize under the terms of Alfred Nobel's will. This year was no exception.

Flags flew all around the City Hall and ceremonial torches around the perimeter were lit. Inside, at least 12,000 flowers, many of them red anthuriums, added color to the mural-adorned walls of the building's main hall, which is often used for special occasions.

The annual Nobel Peace Prize ceremony is the most special of them all. This year it attracted royalty in addition to Norway's own: Spain's Queen Sophia was in the first row, seated next to one of prize winner Muhammad Yunus' daughters. The queen of Spain was among those invited by Yunus himself, because of her interest in his work.

Norway's King Harald and Queen Sonja were, in line with royal protocol, the last to be seated at precisely 12:59pm, followed by Crown Prince Haakon and Crown Princess Mette-Marit, to the strains of the royal fanfare. The four arrived just after the Norwegian Nobel Committee members and the prize winners Yunus and Mosammat Taslima Begum, who represented Grameen Bank.

Norwegian Prime Minister Jens Stoltenberg was also there with his wife, diplomat Ingrid Schulerud, and members of his government. Seated just behind them was Gro Harlem Brundtland, the former Norwegian Prime Minister who went on to lead the UN's World Health Organization.

Seated several rows behind Yunus' daughters and brothers was Hollywood film star Sharon Stone, who will co-host this year's Nobel Concert on Monday evening along with Anjelica Huston. Norwegian actress and director Liv Ullmann was also in the audience, and she posed with Sharon Stone outside City Hall when the ceremony ended.

And seated right behind Stone was Svein Aaser, the soon-to-retire chairman of Norway's biggest bank, DnB NOR. He was seen listening intently to Yunus' Nobel Lecture, in which Yunus criticized commercial banks' reluctance to lend to the poor, believing them to be not credit-worthy.

Yunus' Grameen Bank has proven them wrong, citing a high repayment rate even among the 85,000 beggars who were lent the equivalent of USD 12, interest free. Aaser joined everyone else in the huge room in giving Yunus a standing ovation.