2019 Airstream RV International Serenity 23FB, Airstream International Serenity travel trailer 23FB highlights: U-Shaped Dinette Backlit Storage Surround Sound Sleeps Four Under-the-Bed Storage It's time for you to feel the calming energy and tranquil atmosphere that this International Serenity travel trailer provides. Whether you're spending your evening getting cleaned up in the shower using the removable hand-held shower head, or you're lounging on the ultraleather furniture with a good book and one of the decorative throw pillows, you won't be able to escape the luxurious features found....