The chief executive of Nvidia, Jensen Huang, has taken advantage of popular loopholes in the federal estate and gift taxes, which have quietly been eviscerated.

Madrid tripled the length of its metro system in just 12 years — faster and cheaper than almost any other city in the world. What can its expansion teach other cities?

Madrid tripled the length of its metro system in just 12 years — faster and cheaper than almost any other city in the world. What can its expansion teach other cities?

San Francisco's only safe parking site for homeless people living in vehicles will close after three years of legal disputes, code violations and complaints.

Slow Streets have cut injury crashes nearly in half. Planners will roll out a new bike network soon. Have they learned that slower is safer?

San Francisco’s Vision Zero data suggest that in recent years, motorists were at fault in most pedestrian deaths by car. Still, some readers think city safety measures do more to inconvenience drivers...