Cities around the world are changing in exciting ways. Here's what the future looks like.

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"Circular City: Amsterdam"

Amsterdam is using yesterday’s trash to fuel the city today. Here’s how it is becoming the most energy friendly city in the world.

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"Water Cities"

These cities are working alongside nature to become flood-proof. Amsterdam, Rotterdam, and Las Vegas have implemented technologies to protect, conserve, and purify water in a world where droughts and floods are increasingly the new normal.