video

https://en.wikipedia.org/wiki/Cross

https://en.wikipedia.org/wiki/Crossrail

https://en.wikipedia.org/wiki/Cross_product

Amazon.com: black cross necklace

Black Cross Necklace | Neiman Marcus

black cross necklace | eBay

Cross Necklaces | Kohl’s

Cross Necklaces | Necklaces | Zales