Science A 3D interactive map of the shade provided by every single NYC street tree Ruben Bolling

new york city Bell bottoms, subway graffiti, and a sleazier Times Square in this great archival footage of New York City in the 1970s (video) David Pescovitz

cities These amazing towns and cities are completely abandoned David Pescovitz

History Remarkable footage of bustling downtown Los Angeles in the 1930s David Pescovitz

san francisco Captivating first-person video from a San Francisco cable car in the 1960s David Pescovitz

bitcoin El Salvador is building a volcano-powered "Bitcoin City" with no taxes Thom Dunn

History Cahokia: The massive North American city that pre-dated Columbus Thom Dunn

cities Saudi Arabia announces plans for a zero-carbon city that's 105 miles long David Pescovitz

COVID-19 Vacant office space in San Francisco doubled to 12 million square feet in 2020 Mark Frauenfelder

coronavirus Drone flyovers of New York, Los Angeles, San Francisco and Seattle Mark Frauenfelder

marketing Las Vegas' slogan will no longer be "What happens here, stays here" David Pescovitz

Science We need a "science of the night" David Pescovitz

housing An entire village built on the roof of a huge building David Pescovitz

crime US Conference of Mayors adopts a resolution to never pay off ransomware attackers Cory Doctorow

Business The empirical impact of Lyft and Uber on cities: congestion (especially downtown, especially during "surges"), overworked drivers Cory Doctorow

architecture Can there be a mile-high skyscraper? David Pescovitz

DRONES Autonomous boats in some cities could transport people, shuttle goods, and self-assemble into structures David Pescovitz

happy mutants To save the Earth, stack humans in green cities and leave the wilderness for other animals Cory Doctorow

surveillance It could happen here: How China's social credit system demonstrates the future of social control in smart cities Cory Doctorow

pollution New Orleans pulls 46 tons of Mardi Gras beads from storm drains Séamus Bellamy