The plunging price of Facebook stock aside, Mark Zuckerberg seems to have become ensnared in a kerfuffle over his apparent decision not to leave a tip on a meal during his honeymoon in Rome.

The online Telegraph newspaper reports the Facebook tycoon failed to leave a tip after spending about $40 on fried pumpkin flowers and sea bass-stuffed ravioli at Nonna Betta in the Italian capital's historic Jewish quarter. What he ate isn't important, but what he should have known about tipping etiquette is.

Travel outfitter Magellan's says 10% above the service charge is appropriate throughout Italy. Conde Nast Traveler's tipping guide says leave as close to 10% as possible, no more than that, when in Italy. And business magazine Kiplinger suggests restaurant tips of 15% to 20% that are standard stateside would seem far too extravagant in Italy and much of Europe.

I find that my tipping etiquette -- for hotel stays, bellhops, etc. -- is inconsistent at best, even when I'm just tooling around the U....

Travelers heading for Paris, London, Berlin, Tel Aviv and Moscow this summer for a while can save up to 20% on hotel bills at Intercontinental Hotels & Resorts.

The deal: Stay Longer, Pay Less discounts best flexible room rates up to 20% for those staying at least five days at one of 23 hotels in Europe, the Middle East and Asia. (Properties in France and Warsaw, Poland, require a seven-night stay.) You can get this deal online or by calling and asking for the summer offer.

When: The deal is good for travel from July 15-Sept. 22, based on availability. It must be booked at least seven days in advance.

Tested: I checked availability at the Intercontinental Berlin for Aug. 12-18. I found an average nightly rate, with the discount, of $143 a night instead of $204 a night. On the same nights, I found a room at the Intercontinental Budapest in Hungary for an average rate of $87 a night instead of $143 a night. (Prices are converted from euros and approximate.)

Bottom line: The longer-stay...

"Packaged tours" and "bucket list" usually aren't used in the same sentence, but tour operators are out to change all that. The U.S. Tour Operators Assn. is giving away a free trip each week for the next four weeks to bucket list-worthy destinations.

"Gone are the days where such vacations simply meant motor coach transportation and a guide with a sign," President Terry Dale says in a statement. "These are not your grandmother’s trips."

The sweepstakes started Tuesday and will give away these trips including round-trip airfare:

--A 13-day Pacific Delight Tours package to China and the Yangtze River for two this week;

--A 12-day Go Ahead Tours package to Yellowstone, Mesa Verde, the Grand Canyon and other national parks for four the week of June 5;

--A 15-day Collette Vacations tour to Australia and New Zealand the week of June 12;

--A 14-day Globus trip to Brazil, Argentina and Peru for two the week of June 19.

Here's how it works: Start by "liking" the organization's Facebook pageand...

The weather forecast for Legoland California this summer calls for a 100% chance of getting 100% soaking wet.

PHOTOS: Pirate Reef water ride at Legoland California

The new Pirate Reef water attraction opened over Memorial Day weekend at the Carlsbad kiddie park with a pair of life-size Lego pirate ships flanking the splash zone of the classic shoot-the-chutes ride.

For its relatively modest size, the 25-foot-tall attraction built by Florida-based Hopkins Amusement Rides generates a surprisingly enormous splash.

The 15-foot-tall fan-shaped tidal wave delivers a double whammy, with the initial deluge sweeping over the boat like a tsunami only to be followed by a trio of ricocheting blasts that careen off the twin pirate ships and the overhead bridge connecting them onto the boat passengers below.

When I rode Pirate Reef, it felt as if every last drop of the 155,000 gallons of water in the lagoon rose in unison and crashed down upon our collective heads. I couldn't get wetter if I dove into a...

In Las Vegas, swimming pools are as much a destination as the casinos. DJs and stylish settings keep the hip factor high on the Strip and beyond. Caesars Entertainment is offering a deal with low rates on a two-night stay that includes a $25 pool-side restaurant credit.

The deal: The deal is good at Caesars Entertainment properties, including Caesars Palace, Planet Hollywood, Rio, Flamingo, Bally's and Paris. Prices start as low as $48 a night (Bally's).

When: The offer is good through Dec. 31, based on availability.

Tested: It's best to go in summer when the pool scene is in full swing. I checked availability for July 4 and 5 and found these costs for both nights:

--$215 plus tax for a Roman Tower Room at Caesars Palace with one king-sized bed. Kick back at the  eight-pool oasis called Garden of the Gods. (As a comparison, the same room on the same nights without the deal would cost $119 to $129 a night plus tax.)

--$135 plus tax for a Fab Deluxe Room at the recently renovated...

For the Queen's Diamond Jubilee this year, tributes don't get bigger than this -- at least not yet.

An enormous photograph of Queen Elizabeth II and the royal family, measuring 328 feet wide and 229 feet tall, was installed Friday along the Thames River near Blackfriars Bridge. It took a team of eight workers to put it up.

In the photo, the queen seems to be waving to all who pass -- an image perfect for the moment the Jubilee Flotilla will sail by on Sunday, June 3. It's all part of the celebrations marking the queen's 60th year on the throne.

The photograph was snapped during the queen's Silver Jubilee in 1977. From left are Princes Charles Edward and Andrew, the late Lord Mountbatten, the queen and Prince Philip, and Capt. Mark Phillips and Princess Anne (from whom she divorced).

And really, it's a bit of a coverup. The huge canvas photo hides the redo of a 1970s-era building called Sea Containersthat will be transformed into Europe's first Mondrian hotel, according to a release from...

A kiss can last forever, at least on San Diego's waterfront.

"Unconditional Surrender," the 25-foot sculpture of a sailor and a nurse kissing to mark the end of World War II, is scheduled to be taken down Wednesday from Tuna Harbor Park in front of the U.S.S. Midway Museum and shipped to New Jersey for restoration, according to a Unified Port of San Diego statement.

But that's not where the Big Kiss ends.

The Midway Museum announced Saturday that it has raised $1 million in a "Save the Kiss" campaign and will underwrite a permanent bronze copy of the J. Seward Johnson sculpture. The new statue is expected to be in place in December, the Associated Press reports.

The temporary landmark had been on loan from the nonprofit Sculpture Foundation since 2007, drawing tourists who loved to imitate the 6,000-pound couple while having their pictures taken. It was slated to come down in February, but fans petitioned the port to extend the smooch sculpture.

Another version of "Unconditional Surrender"...

The smooth, quick and quiet Manta family coaster that debuted over Memorial Day  weekend at SeaWorld San Diego is just the type of thrilling ride the marine park sorely needs.

PHOTOS: Manta roller coaster at SeaWorld San Diego

The knock on the sea life show-heavy park has always been that it doesn't have enough rides. Over the past few years, SeaWorld has added a number of kiddie rides, but this summer the park finally got around to satisfying the tween set.

For a 30-foot-tall family coaster with a top speed of 43 mph, the $35-million Manta manages to pack a lot of surprises into its modest proportions while even delivering a pair of firsts for a U.S. coaster.

After passing through a subterranean aquarium filled with 65 rays and boarding the train, the ride starts inside a first-in-the-U.S. launch tunnel featuring 270-degree projections on the curved walls surrounding the coaster train. As high-definition animated manta rays dart to and fro all around the riders, the coaster train rocks...

Members of the military who like to play golf will get a break on green fees and score free replays at more than 25 Marriott golf courses nationwide. The deal honoring servicemen and women was rolled out in time for Memorial Day and runs through Veteran's Day.

The deal: Active, reserve and retired military members can take advantage of the Fairways Fore Freedom program. Here's how it works: Play after 3 p.m. at a discounted rate and receive a voucher for a free replay. A valid military ID is required.

When: The offer is good now through Nov. 12 and based on availability.

Details: Shadow Ridge Golf Course and Desert Springs Golf Resort, both in Palm Desert, are participating in the program (no hotel stay required). At Shadow Ridge, a round of golf after 3 p.m. usually costs $55; military members pay $39 at this time of year and receive the replay voucher good until the end of the year. 

Contact: Marriott Golf or individual golf courses.

The clean, crisp modern lines of "Tron" have been replaced by the chaotic, rose-colored acid trip of "Alice in Wonderland," but outside of an extensive cosmetic makeover, little has changed now that Disney California Adventure has rethemed its nightly dance party from ElecTRONica  to the Mad T Party.

PHOTOS: Mad T Party at Disney California Adventure

The shiny new look seems tailor-made for the short attention spans of the wall-to-wall under-25 crowd of mostly high school and college kids who have made the alcohol-infused and music-centric outdoor rave a wildly popular success at the Anaheim theme park.

If it ain't broke, reboot it.

Disney has a longstanding reputation of doing cool and hip very badly in its never-ending desire to stay current with pop culture. Witness Disney Dance Crew with its epic fail of Mixmaster Mickey Mouse hip-hop dancing to mash-ups of urban street sounds.

Just like ElecTRONica and GlowFest before that, the Mad T Partytransforms the moribund Hollywoodland studio...