Big Ben, a giant clock, in London England.

The Louvre, a large museum, in Paris France.

The Tower Bridge in London England.

The Arc De Triomphe in Paris, France.

The Colleseum in Rome, Italy. The Romans built this for gladiators.

Eiffel Tower in Paris, France.

Notre Dame cathedral in Paris, France Notre Dame cathedral in Paris, France. Christians worship in buildings like this.

The Parthenon on the acropolis in Greece The Parthenon on the acropolis in Greece. Greece was the first democratic country.

The Leaning Tower of Pisa in Italy.

Westminster Abbey in London, England.

Windmills can be used for many things but they are common in countries such as the Netherlands and Belgium because they were used to pump out polders.

Castles were built for defense and as houses for aristrocrats.

This is a type of building called a chalet. Notice the steep roof This is a type of building called a chalet. Notice the steep roof. These buildings are common in the Swiss Alps because there is a lot of snow. This is a good example of how humans adapt to their environment.