There’s a free-roving “World Bests” meme on the loose this week. Thus far it’s attached itself to subway systems, waterfront cities, and cab rides in international destinations.

A friend just forwarded me a link to some very impressive pics of Stockholm’s Tunnelbana stations – apparently, they’re known as “the longest art gallery in the world.”

Paris has a new tram line connecting the outer edges of the 13th, 14th and 15th arrondissements, the first tram within city limits since 1937.

Google is currently testing yet another feature to add to the panoply of options for Google Maps.

Not owning a car, and being a dedicated urban traveler, I’m a big fan of public transportation, and not just for the ability to get around faster and more cheaply, but for the typically slick-but-simple design package that goes along with it, too. Ergo,

Perhaps as a response to the recent heat wave, when NYC’s normally odoriferous subways must have risen to a whole new level of rankness, the Gawker crew are asking their readers to submit info about the particular smells of subway stations.

In yet another great fusion of user-generated know-how and Google Maps, Bikely’s bike maps plot routes all over the globe (though primarily in North America and Europe, at the moment) used by cyclists who’ve been there, ridden that, and survived to recomm

Just in time for the city to be flooded by rampaging World Cup football fans, Berlin is about to open a very large and shiny mega train station, planted squarely in the former no-man’s land between east and west.

Just in time for US tourists to keep Bike Month rolling while abroad, comes this bit of info about a new bike rental system in London, OYBike, that operates sort of like Zip Car, only without the fossil fuels.

Here’s one more way your iPod can help you travel below the radar on your next urban vacation, this time while traveling underground.