To locate Fortaleza on Earth, you can use the famous computer program Google Earth:

Google Earth is some kind of browser that lets you visualize the whole planet. The images are captured by satellite, with an impressive quality.
The program is completely free, but requires a powerful machine and a fast internet connection.

Where to download the program?

It can be found at earth.google.com

How to locate Fortaleza?

After installing the program, just download and open the following archive:
fortaleza.kmz