Got an outdoor feline friend? There's also the Let Meow't Cat Doorway, meant for single story windows (unless you cat knows how to glide), and with a maze of "flap" doors to minimize heat and AC loss. Your cats will quickly refer to this as the "escape hatch" from their bipedal captors.
Our two cats love peering outside our second story windows to chatter at birds, bask in the warm sun and make silent commentary about passerbys walking underneath. You've likely heard of the Grand Canyon Skywalk, and now you can give your feline friends a similar experience with the Let Meow't Cat Patio, complete with translucent porch roof ontop so your cat can spy overhead neighbors.