World-crossing (Canon)

World-crossing, also known as Portal Jumping in some cases, is a magical type of travelling featured on ABC's Once Upon a Time and Once Upon a Time in Wonderland. It first appears in the first episode of the first season.
World-crossing is possible via many ways. This article lists all cases of world-crossing from magic bean portals to a mermaid's ability to swim from a world to another.
==Known Ways to Cross Worlds==
===Between Magical Worlds Only===
Some methods are limited only to travel between magical worlds. However, travel to worlds without strong natural magic (such as the Land Without Magic) is possible if the location has strong magic (i.e. Storybrooke).
*Apprentice's Wand
**Cyclones
**Magic Doors
**Magical Portals
*Black Fairy's limited ability (from the Dark Realm to a world and immediately back)
*Cyclone (typically to Oz)
*Dark Fairy Crystals
**Cyclones
*Darkness (from wherever to the Vault of the Dark One)
*Divine Magic
*Enchanted Mirrors (to the World Behind the Mirror and back)
*Heroes and Villains book
**Combined with Enchanted Quill
**Combined with magic key
*Genie's Wish
*Jefferson's Hats (from a magical world/location to another and back)
**The Hat's Looking Glass (to Wonderland and back)
**The Hat's Enchanted Forest portal
**The Hat's Camelot portal
**Door to the Land Without Color (to the Land Without Color and back)
**Door to Victorian England (to Oz and back)
**Oz Curtains Portal (to Oz and back)
*Keys to the Land of Untold Stories (can turn any door into a portal to the Land of Untold Stories)
*Kraken's Blood
*Lake Nostos
**Combined with dehydrated Magic Bean
**Combined with Magic Wardrobe ashes + Enchanted Compass
*Looking Glasses (to Wonderland, rarely back)
*Mermaid Magic
*Pegasus Sail (from Fairy Tale Land to Neverland and back)
*Rabbit Holes
*Savior Magic + Hrunting
*Savior's Wand
*Teleportation (rarely)
*Time Travel Spell (from one time to another, and can cross worlds)
*Wishing Star
===Between Magical and Non-Magical Worlds===
Some methods can be accomplished regardless of whether the location is a magical world or a world without strong natural magic.
*Apprentice's Magic
**His portal spell
**His Magic Doors
*Dark Curse (from wherever to Storybrooke and back if undone)
*Magic Beans
*Magic Wardrobe
*Shadow flight
*Silver Slippers
===Between the Afterlife and the Mortal Worlds===
Some methods allow travel
*Ale of Seonaidh (a soul from the Underworld to another world for a short period)
*Fiery Cave (from the Underworld to a "Worse Place" or Mount Olympus)
*Furies ability (from the Underworld to wherever and back)
*Sleeping Curse (sends victim's soul to the Netherworld)
*Summoning Ceremony (a soul from the Underworld to any world)
*Underworld portal combined with blood of someone who has come back to life (to the Underworld or back)
==List of World-crossings==
*Other World-crossings
==Appearances==
Category:Items
Category:Portals
Category:Canon Resources