Tower of Babel. Argentinian artist Marta Minujin has created an 82-foot tall "Tower of Babel" in Buenos Aires after the city was named UNESCO's World Book Capital for 2011. Readers, libraries, and 50 embassies donated over 30,000 books in a variety of languages to fill the twisting structure. The Guardian has a slideshow and we posted a video of the tower after the jump. High Line Caution. Witold Rybczynski penned an op-ed for the NY Times cautioning the many would-be High Line copy cats that the success of the New York wonder-park (and a Parisian predecessor) aren't because of the parks themselves, but because of their unique situations in dense, thriving cities. Tower Trouble. The Wall Street Journal writes that skyscraper construction has dropped off drastically from decades past to the tune of 14 million fewer square feet per decade than the period between 1950 and 1990. Can New York maintain its global competitiveness without ramping up construction? Twin Lions. Two stone lions, Leo Astor and Leo Lenox, have been standing sentinel at the New York Public Library's main entrance on Fifth Avenue since 1911. Ephemeral New York posted a little more history on the backstory of the big cats.