where is the location of the place in Macau Airport where I can buy a visa?

Ahmed, you should proceed to the immigration counters on either side of the Arrival Hall to purchase it.

Thanks. It is on the left hand side from the police passports control booths. It is clearly written. The visa costs 100 MOP. A return ticket and hotel reservation are required . Also, sufficient amount of money must be shown.
Thanks again for your correct information.

Hi, Ahmed, I'm Kahan from Yemen. It's nice to see your post. I want to go to Macau for the coming Xmas holiday and am wondering how much show money should I take. Can you tell me what's their requirement? How much can be deemed "sufficient"?

up to 5000 Euro will be fine. Actually they don't count. Nice and kind people.

How could it be 5000 Euros? It's a lot of money. Are you sure about that? Ahmed, looking forward to hearing from you.

Actually the officer didn't mentioned a specific amount. But Macau is very expensive city.