Connections

Originally posted by @js357
They all have twin towns/sister cities?

No. It's a sporting connection.

Originally posted by @wolfgang59
No. It's a sporting connection.

Is the sport football? (Not American)

Originally posted by @js357
Is the sport football? (Not American)

Not one sport, but two.
One person. British

Originally posted by @wolfgang59
Not one sport, but two.
One person. British

Are we looking for the name of a Brit who excels or excelled at two sports?

Originally posted by @js357
Are we looking for the name of a Brit who excels or excelled at two sports?

Ah. Beefy Botham.

What connects a man-horse, an American illustrator, Walter Gropius' project, Switzerland, one of Sherlock Holmes' adventures, and the founder of the eternal city?

Originally posted by @shallow-blue
Ah. Beefy Botham.

Correct, he played football for Sc'nthorpe United and Cricket for the others.

Originally posted by @shallow-blue
What connects a man-horse, an American illustrator, Walter Gropius' project, Switzerland, one of Sherlock Holmes' adventures, and the founder of the eternal city?

The answer must be Romulus & Remus
American graphic novel
Sherlock Holmes fighting cocks
Founders of Rome

man-horse?
Switzerland?
I don't get...

Originally posted by @wolfgang59
The answer must be Romulus & Remus
American graphic novel
Sherlock Holmes fighting cocks
Founders of Rome

man-horse?
Switzerland?
I don't get...

One founder of Rome, not both.
Cocks have nothing to do with it.
An older illustrator than that, and (at the time at least, and to some extent still) a pre-eminent one.
You didn't mention the most unequivocal one.

Originally posted by @shallow-blue
What connects a man-horse, an American illustrator, Walter Gropius' project, Switzerland, one of Sherlock Holmes' adventures, and the founder of the eternal city?

Too hard! :'(

Originally posted by @wolfgang59
Too hard! :'(

Start with the Gropius one. There's really only one thing it can be.

What is a man-horse?

Name some famous Holmes stories.

Originally posted by @shallow-blue
Start with the Gropius one. There's really only one thing it can be.

What is a man-horse?

Name some famous Holmes stories.

You're killing me.

And this thread.

Originally posted by @shallow-blue
What connects a man-horse, an American illustrator, Walter Gropius' project, Switzerland, one of Sherlock Holmes' adventures, and the founder of the eternal city?

I've been at this for days without success.
Man-horse is a centaur
American illustrators number in the hundreds
Gropius is Bauhaus
Switzerland could be anything from cuckoo clocks to wartime neutrality or alps
only 12 Sherlock Holmes adventures, none stand out
founder of the eternal city may be Romulus, Remus, some real individual or Emperor Kanmu of Japan

I think that this one's too difficult for me.

Originally posted by @kewpie
I've been at this for days without success.
Man-horse is a centaur
American illustrators number in the hundreds
Gropius is Bauhaus
Switzerland could be anything from cuckoo clocks to wartime neutrality or alps
only 12 Sherlock Holmes adventures, none stand out
founder of the eternal city may be Romulus, Remus, some real individual or Emperor Kanmu of Japan

I think that this one's too difficult for me.

Centaur, Bauhaus and Romulus are correct.

Switzerland... think Switzerland itself, not something in Switzerland. A knowledge of philately may help.

I did not capitalise Adventure in Holmes' adventure, and it isn't one of those. (I'd have had the same problem if I'd called it a case.)

Can't help you further with the illustrator, except that AFAIK he was mainly a magazine illustrator.

Fonts / typefaces?