Wren’s Dome. Some 300 years ago, Christopher Wren completed St. Paul’s Cathedral in London. Now with today’s modern icons transforming the city’s skyline, the Telegraph pays homage to his lasting landmark amongst the new “Shards, Gherkins and distorted walkie-talkie-shaped skyscrapers.”

Green Mile High. The Editor-at-Large brings news that the USGBC has named Denver the “greenest” city in the United States with about 230 LEED registered or certified buildings. Two have earned LEED Platinum since 2010.

Pike Park. StreetsBlog reports that construction has begun on permanent Pike Street pedestrian improvements to be completed this fall in Manhattan. The project replaces temporary materials DOT installed in 2009 to calm traffic along Pike and Allen streets.

Shut Out. Reuter’s has the list of the world’s most (and least) livable cities ranked by the Economist Intelligence Unit. Vancouver topped the list (Harare, Zimbabwe came in last). No city in the United States managed to break into the top ten.