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The Kon Tiki Museum.
They have his original raft that was used in the 1947 adventure and the 1979 raft from that adventure.
The 47 raft was made from 9 very large balsa wood trees lashed together. A 5,000 mile trip.
The 79 raft was made from reeds.
The big guy himself and a bunch of ancient stone carvings he liberated from Easter Island:
