Hinduism was all over the Asia and some parts in Italy. Pompeii was a ancient city in Italy near Naples city.It was completely covered by volcanic eruption in 79AD and the total city was covered by volcanic lava from mount vesuvi.
Philadelphia university archeological department rediscovered the city in 1960s and it is major tourist attraction in Italy now.
It has temples for Venus,Jupiter,Saturn planet. Those ancient Roman culture were close to Hindu culture. They have rain god,wind god, supreme god and lots of demi gods.
Hinduism is really a long living religion in the world. Azetec religion is another version of Hinduism in Latin America , but it was no more now.