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Dena Levitz

  • City Index

What are the most visited tourist attractions in cities around the world?

What are the most visited tourist attractions in cities around the world?

We round up the most popular tourist attractions to visit or, if you hate tourists, to avoid.

  • City Index

How do greenhouse gas emissions compare in cities around the world?

How do greenhouse gas emissions compare in cities around the world?

On the week of the COP21 climate summit, we ranked 13 urban metropolises with regard to their carbon footprints.

  • City Index

What do kids learn by age 10 in cities around the world?

What do kids learn by age 10 in cities around the world?

This week we broke down—as specifically as possible—the skills and teachings children must master by the time they reach the age of 10 in several cities from across the globe.