Princess Diana. Paris. The paparazzi. A reportedly drunk driver. A tunnel.

It was a year ago today these elements collided--literally--to supply the most shocking headline of 1997: The world's most famous person dead at age 36. Diana, boyfriend Dodi Fayed and chauffeur Henri Paul were killed last August 31 in a single-car crash in a Paris tunnel that remains the subject of investigation and speculation.

Today, Di's sons Prince William, now 16, and Prince Harry, 13, marked the anniversary in seclusion in Scotland. The boys emerged briefly yesterday for a private church memorial.

The service was one of several ways people around the globe were remembering the beloved royal:

� In London, where flags flew at half-staff, mourners deposited some 1,000 bouquets of flowers outside the gates of Diana's former home at Kensington Palace.
� At Althorp, tens of thousands flocked to Diana's ancestral home--and burial place.
� At Harrods, the famed British department store owned by Dodi Fayed's father, Mohamed, officials unveiled a bronze sculpture of Diana, as well as Fayed.
� In Paris, a small gathering kept an overnight candlelight vigil at the site of the deadly car crash.

"The queen and the royal family, particularly the Prince of Wales, Prince William and Prince Harry, would like to thank people for their messages and kind gestures of sympathy at this sad time," Queen Elizabeth said, in a statement.

Americans, who ate up the nonstop Di news coverage in the hours and days immediately following her death, will mark the anniversary in a typically American way--with lots of TV specials.

Among the Diana shows on tap for tonight:

� NBC's Diana, a two-hour documentary from film director Richard Attenborough at 8 p.m. (ET/PT).
� CNN's NewsStand: A Tribute to Diana at 10 p.m. (ET).
� The History Channel's As It Happened: When Diana Died at 10 p.m. (ET/PT).
� A&E's Investigative Reports: Diana's Last Day at 9 p.m. (ET).

In other Diana-related developments, Mohammed Al Fayed has issued a $20 million reward for anyone who can prove that the deaths of his son and the Princess were the result of a conspiracy.

While Paris investigators continue the seemingly unending business of investigating, everyone from the photographers who pursued Diana's car on motorcycles, to the reputedly sauced Paul, to a second "mystery car" have, at one time, been blamed for the deadly crash.