Parece que o exemplo mais popular seria a série Harry Potter. Estou tendo dificuldade em encontrar exemplos populares antes do J.K. Rede de Floo de Rowling.
Como Hypnosifl apontou nos comentários,
"if you're going to have magic portals in old-timey houses there's only so many places they could be"
J.K. Revelações de Rowling Trecho abaixo:
In addition to domestic fireplaces, there are around a thousand fireplaces across Britain connected to the Floo Network, including those at the Ministry of Magic, and various wizarding shops and inns.
‘Floo’ came from the flue that you find on a chimney and don’t ask me to tell you exactly what a flue is, because I don’t know. I just know it exists, but I’m not sure what it does exactly. I needed a way for particularly young witches and wizards to travel around because I’d created the International Statute of Secrecy, which was inconvenient, so immediately that made it quite difficult for them to move around, particularly over long distances, by magical means. So I thought they need something very discreet, and that’s how the Floo Network came about, so it was a way of moving from house to house without ever being seen by Muggles. But it was fun and comical to have it a little bit difficult to use, so that you could easily make a mistake in where you ended up.