A Tardis has appeared alongside a cafe on the Bristol to Bath cycle path - with a Victorian-style bathroom inside.
The replica of Doctor Who's time-travelling machine was bought by the owners of Warmley's Waiting Room Cafe.
They have spent the past few months turning it into the "Who loo", complete with flashing light and Tardis sound effects.
Owner Justin Hoggans said: "It's got everything you need; a toilet, sink, hot and cold water and a hand dryer."
He said he was a big fan of the television show, a new series of which starts on BBC One this Saturday starring Peter Capaldi as the Doctor.
Mr Hoggans said: "This is a replica [Tardis], made by a carpenter in York.
"We've got a doorbell we can press in the cafe that makes the sound go off, so we do it when someone's having their photograph taken outside - which is quite often.
"The light is operated off a motion sensor so as someone goes into the toilet, the lights inside and on top of the box go on to indicate the toilet's in use."
He said: "We needed a toilet to operate. We've got public toilets just opposite us, but they were shut down for about three weeks last summer so we needed a toilet.
"We thought, if we're going to have it let's make a feature of it."