5.
Canadian Quetzalcoatlus Preistoric Coin
Until now the Canadians rocked the world of coins with the Superman currency, but before that in 2013 they gave the people another reason to collect these items.
Prior to that they released a coin that attracted both dinosaur enthusiasts and coin collector, a unique representation of a Quetzalcoatlus.
If most of the people were mistaking the ancient dinosaur with the Pterodactyl, they were truly wrong because this particular Dino was from the late Cretaceous period.
The awesome feature beside the fact that you have the opportunity to collect a unique dinosaur coin is that while the coin stays in the light it absorbs it and in the dark you can see the skeleton glowing a feature found only at this Canadian Royal Mint commemorative coin.