The UFC has already been all over the world. The Las-Vegas based promotion has taken its world-famous shows everywhere from New Zealand to Japan to Saudi Arabia to Sweden to Argentina.

And there are still frequent conversations about the places the promotion has yet to go.

Those conversations got particularly loud after the recent UFC 305 in Perth, Australia. The card was topped by a middleweight title fight between South African champ Dricus Du Plessis, and Nigeria-born Israel Adesanya, both of whom have been calling for UFC events in their countries of birth for years.

It remains to be seen whether the UFC will ever set up shop in either nation, but there is no denying there are still a few cities left on the map that look like great destinations for the promotion.

Here are four places we think the UFC should bring the Octagon.

Johannesburg

Dricus Du Plessis has been campaigning for a UFC event in South Africa for most of his time with the promotion.

After winning the middleweight title with a decision win over Sean Strickland in January and defending it with a submission victory over Israel Adesanya on August 17, he might finally have the sway to make it happen.

After all, UFC president Dana White suggested he would bring the promotion to South Africa if Du Plessis defeated Adesanya.

"If [Du Plessis] can beat Izzy and bring that belt back to South Africa, obviously we'll do an event there," he said leading into UFC 305.

It remains to be seen if White keeps his promise, but if he does, the obvious choice in terms of the host city is Johannesburg.

It is the biggest city in South Africa, with a population of over five million as of 2019. It also has an established MMA scene, as the headquarters of South African promotion Extreme Fighting Championship (EFC), which has produced numerous UFC stars over the years, including Du Plessis and Manon Fiorot.

Lagos

We've been talking about a UFC event in Nigeria for a long time.

The idea made the most sense a few years back, when Israel Adesanya and Kamaru Usman were still the middleweight and welterweight champions, respectively.

Had the promotion brought a show to the country then, with one or both Nigeria-born titleholders at the top of the bill, it would have been massive.

Now that both Adesanya and Usman have lost their belts, it makes a little less sense, but there's no denying it would still be big.

For proof, just look at Adesanya's latest visit to Nigeria. The former champ, who now lives in New Zealand, was in his birth country this week and was mobbed by fans everywhere he went.

The same would undoubtedly be true for Usman, as well as Nigerian featherweight Sodiq Yusuff, who was in the country with Adesanya this time around.

If the UFC did go to Nigeria, it would seemingly have to set up in Lagos. It isn't the capital, but it's the biggest city in the country by far, with a population of over 15 million people as of 2023.

Rome

The UFC has visited almost all of the major markets in Europe. It crossed Paris off the list in 2022 and is expected to debut in Madrid sometime soon, particularly if Spain's Ilia Topuria hangs onto the featherweight belt.

There is one major European city that the promotion seemingly has no immediate plans to visit, though: Rome.

The closest we came was when White was talking about promoting a fight between tech billionaires Elon Musk and Mark Zuckerberg, and he mentioned hosting the potential fight inside the city's famous Colosseum, but we all knew none of that was going to happen.

While MMA is perhaps not as popular in Italy as it is in other European countries, it has long been a hub for kickboxing, so there's at least some appetite for fighting there. It's also produced some talented UFC names, most notably Marvin Vettori, who has been one of the promotion's top middleweights for several years.

All the ingredients for a successful show in the country seem to be there. And when you consider how often the UFC has used imagery of the Colosseum and its gladiators in promotional material, it seems like something it would have made happen a long time ago.

Bangkok

Loma Lookboonmee is the only Thai fighter on the UFC roster at present, but the promotion should still consider bringing a show to Bangkok.

The capital of Thailand was home to more than 10 million people as of 2021, and it's unsurprisingly a hub for the country's national sport, muay thai, which also happens to be one of the most important pieces of the MMA arsenal.

There is also a growing MMA scene in Thailand. That's due in large part to the work of ONE Championship, which promotes shows in Bangkok's hallowed Lumpinee Muay Thai Stadium every Friday.

Those cards primarily feature muay thai and kickboxing bouts, but they usually open with a couple of MMA fights, which suggests there's a growing appetite for the sport in the country. Stamp Fairtex, who holds ONE's atomweight MMA title, has also helped bring the sport into the limelight in her homeland.

While Lookboonmee is nowhere near ready to headline a potential UFC pay-per-view in Bangkok, the promotion wouldn't necessarily need a Thai fighter in the main event.

Chinese strawweight champ Zhang Weili, who trains in Thailand, would undoubtedly draw a crowd in the country. In fact, pretty much any title fight would.

After all, the UFC's most recent PPV in Singapore was headlined by a light heavyweight title fight between Brazil's Glover Teixeira and the Czech Republic's Jiri Prochazka, and it was a sellout.

There's good reason to believe a similar formula could work in Thailand, too.