The world of travel moves fast! Let’s keep up–together. On Fridays, Traveling IQ curates the highlights from the past week:

*San Francisco is the happiest city in America, but Rio de Janeiro makes the world smile (via Huffington Post).
*Poop, power outages and the perfume of sewage defeat the cruising vacation of 3,143 passengers aboard the Carnival Triumph (via Miami Herald).
*On Valentines’ Day, American Airlines and US Airways announced the marriage that will soon conceive the world’s largest air carrier (via Washington Post).
*Kids are great–and necessary to the continuation of the human race–but you don’t always want them on your flight. Now, a Malaysian-based airline is introducing a kid-free, quiet zone (via Passport Magazine).
*France’s Roissy-Charles de Gaulle Airport offers duty-free shopping and an Auguste Rodin gallery (via NY Times).
*Want to know more about your upcoming vacation destination? Tourism boards are sharing pictures, upcoming events, and restaurant recommendations on Twitter (via NBC News).
What did I miss? Share your favorite travel news in the comments below or by posting on the Traveling IQ Facebook page.
(Photo via Fox Latino)