I haven't traveled nearly enough, but I'd say it's either Amsterdam, Netherlands, or Barcelona, Spain.

Amsterdam for the freedom and beauty. Barcelona because it's beautiful and on the beach.

It's not even a great beach, kinda rocky for my taste, but it's just such a beautiful city.

I mean I love my city and kinda think its the gratest but I can recognize that is my biased feeling and I don't have nearly enough experience to say. Many seem really cool. I think one thing is many cities have all sorts of coold aspects but im not sure one is cool in every aspect.

Sarnia, ON, because why would I leave if its the best place on earth.

Vienna, Austria is a pretty great place.

Which city? Mine.

Why? Because i live there.

Berlin.

Many people hate Berlin. I don't. It's got so much variety, there are neighbourhoods surrounded by lakes, neighbourhoods that are basically in the woods, beautiful neighbourhoods like Charlottenburg and very urban neighbourhoods. Want something good to eat? There'll be something amazing nearby. They have trams running through the forest. There are trains going to Amsterdam and Prague. You can get everywhere by public transport (outside town in Brandenburg too). It's surrounded by a beautiful state, where you can watch cranes migrate in huge flocks and where you can skate on natural ice in winter.

I live near Freiburg now. Everybody loves Freiburg and the Black Forest. But I miss Berlin.

Utrecht

Houten, Netherlands. No cars in the city, you can bike anywhere. The true 15 minute city

For me? Montréal.

It's incredibly walkable, tons of parks and nature and trees all throughout with a beautiful unique urban design (the brick plexes) and a unique blend of cultures.

New York, obviously, and fuck you

Atlantis. It's so exclusive that nobody knows how to find it.

New Amsterdam

(because it became New York)

TL;DR: Seoul, Korea. I loved living there.

I've not seen many cities on Earth. But, in making my choices, I'll share what Im considering.

Caveat: I've never been to any place on the African continent. This is an admitted blind spot. I've also been to only three European cities.

Not New York, Toronto, San Fransisco, Ottawa, Portland, Las Vegas, Washington D.C., Miami, Québec, Atlanta, or Halifax (sorry Nova Scotia, we love you!)

Not London (UK). Not Frankfurt. Not Sydney (Aus). Not Beijing. Not Kathmandu. Not KL, KK, Bangkok, or Singapore. Not Dubai. Not Colombo, Male, Kuwait, Doha, or Muscat (sorry Oman, we love you!)

No La Habana, ni Santiago de Chile, Cali, Arequipa, Cusco, y no á ciudad de Guatemala (disculpame mis hermanos de Guate!)

I think that the greatest cities on Earth have DEEP histories, offer diversity, and have been at the crossroads of the human condition.

Of the cities I've spent at least a week in (in no particular order):

• La ciudad de México, México. (Pyramids, gardens, art, and food)

• Istanbul, Türkiye (Hagia Sofia, Bosphorus, history)

• Seoul, Korea (functionality, history, food, mountains, music)

• Cartagena, Colombia (music, seaside, fortress, art)

• Beirut, Lebanon [at least, when (2012) and how (with well-connected locals) I was there. Certainly, it's faced repeated harms in the past 7 years.]

• Berlin, Germany (architecture, functionality, history, walking tour, art, festivals)

• Montréal, Québec (one Canadian city needed to be on)

Ones I've not been to, but might list if I had:

• Tehran, Iran (history)

• Barcelona, Spain (Al-Analous)

• Mumbai, India

• Hong Kong

• Tokyo, Japan

Bielefeld, obviously.

Ecologically speaking, it must me Singapore.

Not Cheyenne, Wyoming. Go there. Walk the streets of its downtown. Walk those desolate streets and say to yourself, "this place is actually the capital of an entire state?"

Cheyenne, Wyoming, the town that God forgot.

Canmore, Alberta. You're minutes from all the places that make up 90% of the Earth porn pictures on the internet, nestled right in the Rocky Mountains. Nobody is ever going to nuke, invade, occupy or otherwise come anywhere near Canmore during a war. Even if they did you could just escape into the vast Canadian wilderness which surrounds it. Lots of good food, shops, recreation and a generally great place to live and raise a family. Cheaper than Banff too!

Nobody said it had to be a major city.