There are numerous fascinating wedding customs enjoyed in cultures around the world. Many cross-cultural similarities can be seen, as marriage traditions frequently symbolize fertility, good health, good luck or beginning a new life. Here are a few interesting customs:

In Greece, brides might carry a lump of sugar on their wedding day, symbolizing a sweet life, or ivy, representing endless love.

In Norway, friends of a couple plant palm trees on both sides of the front door of the couple’s home as a symbol of fertility.

A South African tradition has the parents of the bride and groom carry fire from their homes to the fireplace in the couple’s home, signaling the beginning of their life together.
It’s considered good luck for Venezuelan newlyweds to sneak away from their wedding reception without saying goodbye.

In Fiji, the groom is expected to give the bride’s father a whale tooth.

Source: http://www.worldweddingtraditions.com/