Where is the statue of The Thinker?

The original is in Paris.

Rodin made a first small plaster version around 1880. The first large-scale bronze cast was finished in 1902, but not presented to the public until 1904. It became the property of the city of Paris -- thanks to a subscription organized by Rodin admirers -- and was put in front of the Panthéon in 1906. In 1922, it was moved to the Hôtel Biron, which was transformed into a Rodin Museum.