This interesting Photo of the Day, titled "Spot of White," comes from Gadling Flickr pool member Mark Fischer and was captured in Bangkok's Siam Square using a Nikon D90.

Mark captions the image:

"On Sunday, May 8th, 2011, an estimated 100,000 people attended a ceremony to give alms to 12,600 monks in front of CentralWorld in downtown Bangkok. Almsgiving is a daily event in Thailand and is a way for lay people to support the monks and to gain merit. This ceremony was organized as a symnbolic and practical gesture of support for 286 temples in Southern Thailand. Monks at those temples are unable to collect alms due to the risk of being shot and killed. The food and other items collected here will be sent to support the temples in the South."

Want to be featured? Upload your best shots to the Gadling Group Pool on Flickr. Several times a week we choose our favorite images from the pool as a Photo of the Day.

Tips for being featured: add a caption describing the image and (better yet) your personal experience when capturing it, details of the photography gear used and any tips you might have for others wanting to emulate your work.

Now, you can also submit photos through Instagram; just mention @GadlingTravel and use the hashtag #gadling when posting your images.

[Photo Credit Gadling Flickr pool member Mark Fischer]

Volcanic ash is something commercial airliners want nothing to do with. When Alaska's Cleveland volcano erupted not long ago, shooting low levels of ash into the atmosphere, many airlines were concerned. Another blast could send ash higher, directly into their flight path between Asia and North America, causing major flight schedule disruptions. But while most airlines watch and wait, one is taking some proactive steps to deal with volcanic activity.

Ash clouds are a major problem for commercial airliners, which can literally fall out of the sky if they attempt to fly through one. The problem is the tiny volcanic ash particles. If they get into a jet engine, ash particles can block the ventilation holes that let in air to cool the engine. Accumulate enough of them and engine heat can transform the particles back into molten lava, something you don't want in your jet engine. In 2010, Iceland's Eyjafjallajökull volcano ejected an ash plume 30,000 feet into the sky, crippling airlines in northwest Europe for days as nearly 20 airports closed their airspace.

As Memorial Day approaches, travelers are taking advantage of some special offers and events exclusive to the three-day weekend that officially begins on Friday, May 24. Discounts, special offers and events this year are available at a number of locations around the United States as America remembers the men and women who died while serving in the United States Armed Forces.

Additionally, those in uniform have a variety of special discounts and offers.

Carnival Cruise Lines is offering a promotion that provides active and former military personnel with discounts of up to $600 per stateroom and shipboard credits of up to $100 per stateroom on a range of three- to 12-day sailings. Sister-line Princess cruises continues their Special Military Program, giving those who served up to $250 onboard credit on any sailing.

May is also National Military Appreciation Month and Florida's Fantasy of Flight museum is offering complimentary admission to all active-duty, retired and reserve members of the U.S. Armed Forces when accompanied by a full-priced paid adult, senior or child general admission throughout the month of May.

Not a military member? There are still some Memorial Day promotions for you too.

Virgin Trains, the UK rail arm of Richard Branson's Virgin Group promotes what they do as a faster, more comfortable and greener way to travel. Virgin believes that rail has a clear role to play in sustainable transport and they want to lead the charge. Choosing to minimize the negative and accentuate the positive, Virgin Trains takes social responsibility seriously. Uniforms on their employees? Not so much, unless prompted to do so.

The new uniforms, designed by Vivienne Westwood, are currently on hold because they expose the underwear of female staff members. The Telegraph reports the uniforms are described as "flimsy" and "see-through" via complaints to Manuel Cortes, leader of the Transport Salaried Staffs' Association trade union. But Virgin has an answer.

Applying a similar strategy where they "want to challenge assumptions, solve problems and deliver innovative solutions," as Virgin Trains says on their website, the company gave each staff member a £20 voucher to buy suitable undergarments.

The idea of "adventure travel" is hot and those who sell travel know it. Travelers who lead an active lifestyle as a big part of their everyday life want to continue that focus when traveling. Local adventurers who might camp, hike, hunt, ski or bike around where they live, want the thrill of doing that in an amazing place somewhere else on the planet. Even travelers once satisfied with a pre-packaged land tour or the standard fare on a Caribbean cruise want more. Only one problem: not everyone who likes the idea of adventure travel is equipped to handle it. But they still want it.

Enter land tour operator Abercrombie and Kent, known for safe and luxurious safari-like travel packages with a hefty price tag.

Offering more than a lazy man's adventure, Abercrombie and Kent (A&K) recently announced a 2014 lineup of cruises to the Arctic. These luxury versions of the frigid expedition sailings for hearty explorers, normally associated with that part of the world, might very well be just what the pseudo-adventure traveler has in mind too.

On their July 29, 2014, sailing – Arctic Cruise Norway: Polar Bears & Midnight Sun – A&K guides take their guests to see polar bears, walrus and reindeer from the northern shores of Norway to the Svalbard Archipelago and Spitsbergen (AKA the last stop before the North pole), setting foot on the coastal city of Tromsø and the polar bear stomping grounds of Nordaustlandet. The 12-day adventure starts at $8,995.

It's been nearly two years since scientists at the Alaska Volcano Observatory (AVO) warned that Alaska's Cleveland volcano could erupt at any time, issuing a code yellow eruption advisory. Saturday, those scientists were proven more than right.

"We haven't seen a phase like this where we've had multiple explosions," Rick Wessels, a geophysicist at the US Geological Survey's Alaska Volcano Observatory, told Reuters in a Christian Science Monitor report.

Over the weekend, the Cleveland volcano erupted, spewing gas, steam and low levels of ash 15,000 feet into the atmosphere, directly into the commercial airline flight path between Asia and North America. While disruption in the atmosphere at 15,000 feet is well below the normal 35,000 feet cruising altitude of commercial aircraft, the concern is that further eruptions could disrupt air traffic, much like Iceland's Eyjafjallajökull volcano (pictured) did in 2010.

They all talk about it. "Like us on Facebook," "Follow us on Twitter" and "Read our blog," say travel-related websites selling everything from guidebooks to airline flights, gear and gum. Many give us little reason to like them, follow them or do anything other than buy their products on the way to the next online destination. But some travel seller sites actually do put some time and effort into creating a reason to visit other than to buy something.

The task of buying a hotel room for a night is easy to define. The short list of variables includes location, price and availability. Easy. Any number of search sites can gather that information, whirl it around and present viable options. Hotel.info does more. On their blog we find The Ultimate Guide To Cooking In Your Hotel Room that brings us unique, interesting content that in and of itself is a good reason to visit their site.

Solar Impulse, the solar airplane that was set to fly across the United States, has taken off and completed the first leg of the journey from California to Arizona. Averaging an altitude of just 10,000 feet and a speed of 40.6 miles per hour, the flight took most of a day to complete. Technically, 14,000 people were on board, albeit virtually via streaming video.

Launching the "Clean Generation" initiative by completing the first leg of their 2013 Across America mission, Pilot Bertrand Piccard took off from Moffett Airfield at NASA's Ames Research Center early Saturday morning, arriving at Phoenix's Sky Harbor International Airport 18 hours and 18 minutes later.

Promoting greater investment in technologies for sustainable energy production and use, Piccard and Solar Impulse co-founder André Borschberg will alternate flying the five legs of the trip.

This Photo of the Day, titled "Brighten Up Your Day," comes from Gadling Flickr pool member The Delhi Way and looked like an appropriate photo for this time of year when Spring showers are happening in many places

Taken in Delhi India, The Delhi Way says of the image: "One can find the most eclectic things in Delhi. These beautifully embroidered, vibrant umbrellas while being practical, can also be the perfect accessory to your outfit & moreover a great mood up-lifter. "

Want to be featured? Upload your best shots to the Gadling Group Pool on Flickr. Several times a week we choose our favorite images from the pool as a Photo of the Day.

Tips for being featured: add a caption describing the image and (better yet) your personal experience when capturing it, details of the photography gear used and any tips you might have for others wanting to emulate your work.

Now, you can also submit photos through Instagram; just mention @GadlingTravel and use the hashtag #gadling when posting your images.

[Photo Credit Gadling Flickr pool member The Delhi Way]

Considering a trip to see the Northern Lights? This year may very well be the best time to go. 2013 is the height of the 11-year solar cycle. September and October offer peak activity. They can be seen in Alaska, Norway, Finland and Canada on a clear night. Better yet, try viewing on a ship at sea.

Common tips for viewing the Northern Lights say to go North, inside the Arctic circle, bring along a good guide and get away from light produced by cities and towns. That's exactly what Compagnie du Ponant, a little French-flagged cruise line is doing this autumn for one of the best aurora borealis viewing opportunities possible.

Specializing in expedition sailings to the poles, Compagnie du Ponant sails small ships that feature custom technology designed to preserve fragile marine ecosystems.