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Prince William, Kate Middleton

In one of the most anticipated royal weddings in decades, Prince William of Great Britain married his college sweetheart Kate Middleton on April 29, 2011 in London's Westminster Abbey with a reported 1,900 guests in attendance.

Estimates from CBS News peg the total cost of the wedding at about $34 million, Middleton's gown at about $434,000 and the price of their two wedding cakes at about $80,000. Her roughly $142,000 sapphire-and-diamond ring engagement ring, which was also Princess Diana's, served as her "something borrowed" and "something blue." Taxpayers shelled out about $33 million for the security costs.

Following the wedding, about 650 guests were invited back to a lunchtime reception hosted by Queen Elizabeth II. Later, they celebrated during an evening reception with about 300 of their friends and family in Buckingham Palace's Throne Room, reported The Telegraph. British pop star Ellie Goulding performed for the guests while the event is transformed into a "massive nightclub."

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