What interesting things dohave you seen in an airport?

MThe most memorable andor interesting thing I've seen in ian the airport wereas an old-style car exhibition in the airport of Domodedat Domodedovo Airport in Moscowo.

Since I didn't know where Domodedovo is (and I imagine most English speakers don't) it could be helpful to add in Moscow. (I looked it up.)

I've visited it one was there last year ago after my buisiness trip to the city of Voronezh.

You can say this a few ways.
I was there last year--any time in the year before this one
I was there a year ago--some time around 10 to 14 months ago
I was there one year ago--more exact, like exactly one year ago
Usually you'd say last year unless it's important to know what time of year it was.

You don't really say you visited the airport unless that's what you actually went to see. The airport is a place you go to in order to visit the actual place you're going to.

There were some retro cars 30-40th years of productionfrom the 30s and 40s, mostly old Ford's, Citroen's, and Peougeot's and few byks well as a few motorcycles (like BMW, I guessthink).

I think you're trying to say that the retro cars were from the 1930s and 1940s, which is what I corrected it to.

This may depend on where you live or if you ride them, but usually bikes are bicycles, so if you're talking about motorcycles, it's better to write motorcycles.

Saying "I think" in the parentheses means you can't remember or didn't know for sure. Saying I guess means you didn't really care enough to find out or remember what they were.