There are three kinds of airships that have been manufactured: blimps, dirgibles, and hot air balloons.

Give historical examples of each and be sure to include at least one photo for each one.

One historic example of a dirigible is The Hindenburg.

http://www.failuremag.com/images/hindenburg.jpg

Here is the Coca-Cola Hot Air Balloon.

http://www.otownmedia.com/images/balloons.jpg

The Good Year Blimp

http://login.eznettools.net/adaptivestrategies/inflatableblimp.jpg