Facebook created heat maps for the types of laughter by state. The darker the color is on the map below, the more the laughter word stem is used.

脸书根据州分布制作了一份关于“笑”的表达方式的热度图，地图上颜色越深，代表该州使用这种表达方式的人越多。

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Please click on the regions of the map below to see details on the case studies.

UNESCO: World Water Assessment Program (WWAP)

Click on the interactive map below showing state estate and inheritance taxes for 2013.

FORBES: Four Ways To Beat State Death Taxes

Fay and pilot Peter Ragg followed a general map of the "human footprint" on the continent while automatic cameras snapped a photo of the ground below every 20 seconds.

NPR: African Flyover Reveals Impact of 'Human Footprint'