Check out Trulia Hindsite

Trulia has built a neat tool based on their database of historical property values. Trulia Hindsight uses property values from the database to animate real estate development over time. From their FAQ:

What is Trulia Hindsight?
Trulia Hindsight is an animated map of residential properties in the USA that allows you to see when neighborhoods and cities were built. Slider controls allow you to view a specific time range or drag through the timeline. You can also search for specific properties, areas or cities through the search box.

Watch Austin’s growth from downtown to the North, South and Western suburbs: Trulia Hindsight - Austin, TX

You can zoom in on specific suburbs or neighborhoods to see a more detailed view of the development progress. See how Austin’s first suburb - Hyde Park, grew up.

A Few More Cities to check out:

• Downtown Seattle, WA booms in the 1900’s
• Recent growth in Las Vegas, NV
• Cleveland, OH WW2 manufacturing expansion

Post your own interesting finds in the comments