Notre Dame Cathedrale in Paris received 13.5 million visitors in 2006
Other most visited monuments in the world:
The Louvre Museum in Paris received 10 million visitors in 2011
The Great Sphynx of Giza received 6,5 million visitors
Eiffel Tower received 6,5 million visitors in 2009
The Statue of Liberty 4.24 million in 2011
The Great wall of China 4 million
Note that public squares (like Time Square, or Trafalgar Square) don't fall into this category, because a monument is a Building, and a visit implies the purchase of a ticket.
The Colosseum is the most visited monument together with the St Peter's Basilica at the Vatican and the Pantheon.
the most visited monument in France is Notre-Dame cathedral (it is said to be Europe's most visited monument). The basilica of the 'Sacré-Coeur' comes second. The Eiffel tower is hugely popular among tourists and the Louvre is the most visited museum in the world.
Yes
Probably the Roman colosseum.
statue of liberty
yes
It is the most visited paid monument in the world.
Hoover Dam isinit lake tahoe?
While the school children were in Washington DC, they visited the Washington Monument on the Mall.
Most of Englands energy is imported.
I hate everybody
It is a religious monument, a church, built to be a place of worship. It is still one, but it is also the most visited place in France.