Ребят, помогите, пожалуйста. Правильно письмо написано? Есть какие нибудь грубые ошибки?

Dear Michael,
Thanks for your letter. Pardon me that I haven't been in wrote for so long. I like going on excursions too. And it is excellently that you arrange excursion in museums.
My city have two museums: Obruchev's museum and Suhe-Bator's museum. I prefer to visit to historical museums because i like history. We went with my classmates in Suhe-Bator's museum. we saw a lot of interesting things and we learned a lot of new.
I hope that you will visit our city and I will show you our museums
Hope to see from you soon!
With love
Olga