For your Monday reading: interesting stories we spotted from around the blogosphere.
Six reasons to visit Denmark, the world's happiest country. [4 Hour Workweek]
EuroCheapo's upgraded hotel search engine—now with more CheapoFactor. [EuroCheapo]
Prescription sunglasses for about $40, just in time for your trip. [Kevin Kelly's Cool Tools]
Why do airfares change so much? An explanation from a former price setter at US Airways. [The Cranky Flier]
Bing, Microsoft's new search engine, has "instant answers," like cheap tickets for various destinations. [Dennis Schaal Blog]
Are you an introvert? Six tips for shy travelers. [WorldHum]
Amsterdam's Hans Brinker is the worst hotel in the world…and proud of it. [Gulliver]
The Art Institute of Chicago's recently opened Modern Wing was designed by lauded architect Renzo Piano and houses works by the likes of Pablo Picasso. [AP via Yahoo! News]
Beautiful fountains around the world—Europe's got the market cornered on this one. [Kathika]
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