The Eiffel Tower, Paris France. Went to the top at dusk in 2007 and watched the sun set. The tower is spectacular at night especially when it flashes with white lights each hour. It looks like a diamond sparkling!
The famous motto from the gate at Auschwitz "Work makes you free" were actually taken from the gate at Dachau - the first concentration camp in Germany. The camp was opened in 1933 and was used as a forced labor camp for political prisoners.