There are the attractions you plan a trip around: the Taj Mahal, the Louvre museum, a bakery serving bacon donuts, and there are the attractions you stumble upon, and the latter are often more memorable and fun. Take, for example, Seattle's gum wall, whose existence I was unaware of until I saw this close-up photo in our Flickr pool, but is evidently a downtown landmark. The wall is about 15 x 50 feet completely covered in gum, and several inches thick with chewiness in some places. The wall is near a movie theater, where employees long ago gave up trying to scrape away the crud when it kept getting replaced. Another example of how one man's trash is another man's tourist attraction.

See any odd attractions in your travels? Add them to the Gadling Flickr pool for a future Photo of the Day.

[Photo credit: Flickr user Mark Fischer]

SeaWorld Orlando is expanding with their largest-ever project. Continuing a travel industry focus on making all things experiential, Antarctica-Empire of the Penguin is the anchor to a host of new offerings set to open in January. The new ride will have a family adventure theme that utilizes new technology for a unique experience that can change from visit to visit, allowing guests to choose their thrill level.

"Only SeaWorld and its parks can take you on these journeys or bring these experiences to you," said Terry Prather, SeaWorld Orlando's president. "We're excited about what the future holds for our parks and our fans.

First, guests will meet SeaWorld star, a young gentoo penguin and the ride's guide who leads guests on a journey through the Antarctic. Casting the park's colony of penguins, including gentoos, rockhoppers, adelies and kings, guests' experiences with the penguins will be a theme park and zoo first.

China is spending about six million yuan (about $960,000) to open an unusual tourist attraction. Travelers will be able to visit the site where its first atomic bomb was detonated at the remote Malan base in the Xinjiang region.

The country tested its first atomic bomb on October 16, 1964. Since then, over 40 nuclear tests have been done in Xinjiang over the decades before a moratorium was called in the 1990s.

According to BBC News, tourists will now be able to view the laboratories and dormitories scientists used, as well as a 985-foot anti-strike tunnel. It will be a "red tourism site," a location chosen by the Communist Party to commemorate what it considers a historic event.

While Beijing's Tsinghua University and the local government are hoping to attract many tourists, it's unclear how successful they will be as the location of the site is in one of China's most remote areas.

Would you visit this new red tourism site?

[Image via Shutterstock]

Sustainable Tourism Observatories aim to provide standardized, usable information to recognize sustainable tourism providers. Travel agencies use this information to help in choosing sustainable suppliers and certification programs. Consumers use it to identify sound sustainable tourism programs and businesses they might use when traveling. Monitoring the environmental, social and economic impacts of tourism, two new observatories have been set up in China.

A product of the United Nations World Tourism Organization (UNWTO), the agency responsible for the promotion of responsible, sustainable and universally accessible tourism, Sustainable Tourism Observatories have been set up in 155 countries. Representing the private sector, educational institutions, tourism associations and local tourism authorities, the UNWTO tackles challenges like climate change, poverty elimination and others that will be affected by tourism.

New York offers many experiences for the traveler looking for a quality libation. As the weather gets colder and the streets get more crowded, try warming up away from the masses at one of these cozy, underground spaces.

The Vault At Pfaff's
643 Broadway

Located underground at Broadway and Bleecker in NoHo, The Vault at Pfaff's is a neighborhood bar and lounge inspired by Charles Pfaff's original beer cellar. The space played host to numerous actors and literary legends in the 1850s, such as Walt Whitman and Mark Twain. The bar pays homage to its history with refined touches like menus on newsprint, while also keeping the space modern with stylish interiors. On the menu, expect handcrafted cocktails, world-class wines, Champagne, beer and upscale bar bites like mahi mahi ceviche, filet mignon medallions and truffle mac and cheese.

Tony Perrottet won't talk to me. When I call him from the lobby he picks up his phone but doesn't utter a word. Rules dictate that he can't speak in the Writers Room, the shared workspace where he churns out articles and books, and the first stop on our walking tour of Perrottet's favorite neighborhood spots. Five silent seconds pass, then ten.

"Oh heeeeyyy, Rachel," he says finally, his Australian accent infused with a Bob Dylan-esque twang. "I'll be right down."

Silver-haired and wearing dark blue jeans and collared shirt under a soft green sweater, a college-professor-on-sabbatical look, Perrottet ushers me into the elevator. When we reach the Room, I can see why he's a stickler for cellphone protocol. The large loft is quiet as a coffin except for the rhythmic tapping of keyboards – and the twenty or so writers present seem cognizant of doing even that as softly as their productive fingers can manage. Back to back desks are occupied by whoever has shown up for the day, faces obscured by dividing screens. There's a kitchen for lunch breaks and a nap room in case you need to rest up before returning to the Muses. You can come here any day of the week, any time of the day, and stay as long as you like.

At this 30-year-old institution, Perrottet has rubbed elbows with literary celebrities like Jay McInerney, as well as the famous aspiring to the literary, like Molly Ringwald and Brooke Shields. But despite the many well-known authors who work here, Perrottet says it's actually very democratic. "They'll let anyone in as long as you're serious about your writing."

And membership isn't too hard on a writer's often-measly budget. "It's around $100 a month and they give you free coffee so you could actually make a profit if you had a cup every day," he says. It's a pretty good sales pitch, especially in a place like New York, where we cram ourselves into apartments people in other parts of the country would assign to kitchens or particularly roomy bathrooms.

Breathe it in: the warm aroma of fall leaves and cable-knit sweaters, the musty scent of old buildings and library books, and the added jolt of freshly brewed coffee.

It's the smell of a college town, but not just any college town: Princeton, New Jersey, home to the fourth oldest Ivy League university in America.

Princeton particularly shines in the fall, when the energy from the start of the school year is fresh and deciduous trees light up the collegiate Gothic campus in shades of red and orange. Driving into town on Washington Road, it's clear why the Princeton Review consistently ranks Princeton University among the ten most beautiful college campuses in the country.

Located in the south-central part of New Jersey, Princeton is an hour-and-a-half drive from both New York and Philadelphia and an even easier train ride, making it the perfect city getaway. A day trip into town isn't complete without the following stops.

Gallery: Princeton, New Jersey

California ski resort Mammoth Mountain received its first snowfall of the season last week, which bodes well for their November 8 opening day. But fresh snow won't be the only thing visitors find when they arrive at Mammoth for opening weekend. The resort has instituted a host of updates and changes that will make the 2012-2013 ski season one to remember.

Snowboarders and free skiers in particular will find plenty to love at Mammoth this season. In addition to their massive Superpipe, which is traditionally the first to open and last to close in North America each year, the new Progression Park is sure to be a big draw. Specifically designed to help skiers and riders improve their skills, the Progression Park starts with some easy features at the beginning and gradually builds to more challenging obstacles further down the hill. Additionally, the new Downtown Collection adds urban themed obstacles to the Main and South Parks, giving snowboarders a whole new set of features to explore.

Mammoth's new updates and enhancements extend well beyond the slopes and terrain parks, however, as the resort has brought some additional amenities that visitors are sure to love. For instance, new digital lounges have been added to both the Main and Canyon Lodges that offer recharging stations for smartphones and cameras. Those lounges will also provide Internet connections, which will allow visitors to upload their favorite videos and photos to Facebook or Twitter, giving them the opportunity to gloat to friends stuck at home.

This photo from a trip through the Pyrenees is making me eager to plan my next trip. The idea of backpacking through the mountains, specifically these mountains, and seeing views like this appeals to me. Christoph Sahle is a photographer and physicist based in Helsinki, Finland. You can check out a collection of his photos here and live vicariously through him in viewing them. Wish your photo was on Gadling for Photo Of The Day? No problem! Just upload it to the Gadling Flickr Pool and we'll take a look when we get the chance.

[Photo credit: Christoph Sahle]