building and interesting

[Unregistered]

Is this correct?
We watch a broadway show

It was very interesting
It is very interesting

How about this
I went to New York. I went to Skrey Building

It was an old building
I is an old building.

[Anglika]

Is this correct?
We watch a Broadway show

It was very interesting "Was" = past tense - cannot be used after "watch" which is present tense.
It is very interesting

How about this

I went to New York. I went to the Skrey Building

It was an old building Here the building still exists even though the action is in the past, so the present tense should be used.
It is an old building.

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