When was the Eiffel Tower constructed?
user
The Eiffel Tower was built in 1889, and is one of the most famous landmarks in the city of Paris.
assistant
How tall is it?
user
The Eiffel Tower is approximately 300 metres tall.
assistant
Is it the tallest structure in Paris?
user
Yes, it is the tallest structure in Paris.
assistant
When was the Eiffel Tower constructed?
user
The Eiffel Tower was built in 1889, and is one of the most famous landmarks in the city of Paris.
assistant
How tall is it?
user
The Eiffel Tower is approximately 300 metres tall.
assistant
Is it the tallest structure in Paris?
user
The Eiffel Tower is currently the tallest manmade structure in Paris.  But in 1880, the Tour Eiffel was built as a sister structure to the Eiffel Tower, and it was significantly taller.  The Tour Eiffel was demolished in 1909, and in 1964 the Eiffel Tower became the tallest building in Paris.
assistant
When was the Eiffel Tower constructed?