Outdoor weddings offer all sorts of possibilities for ceremony decor — especially when it comes to creative, unexpected altar alternatives. Whether you're into ornate, romantic archways or delicate DIY  details, we've rounded up some of the most original backdrop ideas from across the web. Hoping to bring a bit of personality to your ceremony? Here are 30 must-see ideas to spark your inspiration.
— Additional reporting by Angela Elias
For a fun, whimsical twist, try creating a unique backdrop with found objects or a specific item that means something to you as a couple.
Bring a bit of personality to your ceremony with bright, punchy garland and big, oversize balloons.
Bypass the standard arch routine, and try a unique table setup instead. Use lanterns, flowers, boxes, suitcases — whatever seems to fit in with the rest of your wedding  decor.
Have a special quote or phrase that speaks to you? Hang it from a wooden archway to make it part of your big day.
Dainty and delicate, colorful paper cranes add a dreamy, quirky touch to an otherwise soft, romantic setting.
For an Anthropologie-esque setup, try stacking pallets on top of each other to create a mini wooden stage. Then slip in some flower arrangements to brighten the look.
Paint the words to one of your favorite songs — the processional or first dance song, for example — on two large banners, and stand them up on either side of your traditional archway for a personal touch.
A pair of standing doors perfectly sets the ceremony scene, and the type of doors can make a major statement. Arched glass doors say something very different than antique wooden doors, for instance, so get creative with your options.
If you have a specific shape or logo that's running throughout your wedding  design, then consider creating a large floral version for your ceremony backdrop.
Dainty lace curtains, natural arrangements, and a delicate white birdcage create a rustic, elegant vibe.
If you're in the midst of gorgeous scenery, then why not try a ceremony in the round? Not only will your guests get a unique view, but you'll also be (literally) surrounded by your loved ones during that special moment.
Delve into the popular ombré trend with layers of colored bunting in a variety of shades — simple, festive, and totally original.
With large potted plants and gorgeous, sprawling flowers, a sculptural piece is transformed into a beautiful backdrop that's perfect for a romantic beach wedding .
Create your own "outdoor chapel" with standing arches at the end of the aisle, and then add a crystal chandelier to amp up the romance.
Having a more modern affair? Construct a contemporary arch with simple shapes and bright, fresh shades.
Make any space feel like home with a DIY  wooden fireplace lined with mismatched vases and colorful flowers.
Are you the crafty type? Channel that DIY  charm with fabric flowers, yarn, wooden monogram letters, and the rest of your favorite go-to materials.
Set the stage with tall curtains in a neutral shade; then hang a ribbon garland that goes with your color palette.
Lots and lots of hanging streamers feel fun and festive, adding a bit of whimsy to your big moment.
Hung frames in all different shapes and sizes give the ceremony space an eclectic, contemporary style.
If you share a sweet, special saying as a couple, then create a hanging banner to personalize your ceremony.
Alongside natural, rustic details, the simple word "Beloved" stands out as a sweet, unexpected touch.
Why use one door when you can use four? Create a unique backdrop with two sets of french doors.
Dainty and charming, a simple garland in bright colors lends a sweet dose of character to the setting.
Although it's simple, the added touch of hearts on the archway makes the setting all the more special.
Against a gorgeous view, a simple white archway helps you and the scenery stand out.
To keep up the natural, earthy style, try an archway made of branches. Dress it up with flowers and greenery — or don't, since it's gorgeous all on its own.
How elegant are these draping floral curtains? Go all out with fresh blooms, or try to DIY  with fake flowers.
Don't just think about what can stand on the ground — consider adding unique touches to surrounding trees or structures for a greater visual impact.
If you're going with simple drapes, then ground the look with sturdy flower baskets to create a gorgeous tableau.