The world's most densely populated city was demolished over 30 years ago. Kowloon Walled City was home to 35,000 residents ...

With nearly 2 million people crammed into just 42 square kilometers, Manila is bursting at the seams. How did it become so overcrowded, and what’s next for this chaotic megacity?

A Cinematic Journey”, Hong Kong’s walled city—a labyrinth of tightly packed buildings demolished in 1993—come back to life, ...

San Francisco City Hall located at the center of downtown San Francisco. Photo by Scott Hobbs. A view of San Francisco from ...

For Richmond, the results are similar to most cities — more densely populated areas near the city center give off fewer carbon emissions than their suburban counterparts. The farther from the ...