Your parent's 25th wedding anniversary is a major milestone. Known as the silver anniversary, celebrating the union of your parents only seems natural. But you may struggle to find the perfect way to celebrate their enduring love in a meaningful, special way. You can celebrate your parent's anniversary by planning an event, such as a party or an intimate get together. You may also give your parents a gift that is thoughtful and personal to them so they can mark this milestone in a meaningful way.