Where I can download sample database which can be used as data warehouse? [closed]

Where I can download sample database which can be used for data warehouse creation? It should't be sample from Microsoft (Northwind etc.).

EDIT: Sorry for not clarifying my question. At my university we have class where we must create some data warehouse and since Northwind is so popular over net then professor told us not to use this database. We will use for this SQL Server 2008 but using Northwind is forbidden.

Where do you get data to the data warehouse database?

Data flows into a data warehouse from transactional systems, relational databases, and other sources, typically on a regular cadence. Business analysts, data engineers, data scientists, and decision makers access the data through business intelligence (BI) tools, SQL clients, and other analytics applications.

This is a free online database data generator: www.generatedata.com

You can design a table structure and let the script generate rows to populate it. It's not exactly what you need, but I think it can help.