Over 1 billion Valentine's Day cards are exchanged worldwide each year. That's a lot of love notes!

In South Korea, single people celebrate "Black Day" on April 14th by eating black noodles to mourn their relationship status.

The most expensive Valentine's Day gift ever sold was a 23-carat diamond ring worth $70 million!

In Finland, Valentine's Day is also known as "Friendship Day," celebrating all forms of love.

Forget Cupid, in Wales, wooden "lovespoons" are traditionally carved and gifted as tokens of affection.

The world's largest chocolate box weighed over 8,000 pounds and was made in Italy. Talk about a sweet gesture!

In Japan, women traditionally give chocolate to men on Valentine's Day, with men returning the favor a month later on White Day.

Conversation hearts originally started as cough drops with romantic messages printed on them.

Forget roses! The first Valentine's Day card was a poem written from prison.

Cupid wasn't always a cute cherub! He started as a mischievous Greek god armed with love arrows.