Most cities in the United States tax land according to what an owner builds on it. That's great if you're an owner, but lousy if you're a city that wants something cool built on it. The solution: tax it according to what an owner can build on it.
The idea of separated bicycle lanes is growing in popularity. Tom Vanderbilt at Slate looks at the increase in investment and attention to making room for bicycles and increasing safety so more people will ride.