Can you help me fix my Japanese report?

I just need it to be simple, but sound natural, for it to flow like a short story. Any changes - and why you would change it - would be appreciated.

Romaji version:

watashi wa kinyoubi ni chichisanto densha de rondon ni ikimashita.

watashitachi wa (katakana) seinto po-ruzu katedoraru (katakana) ni ikimashita. kenchiku wa totemo kirei desu.

watashitachi was (katakana) taito moderun (katkana) ni ikimashita. hanshita wa omoshiroi desu.

watashitachi wa (katakana) rondon muzeumu (katakana) ni ikimashita. watashitachi wa shutsudohin ga mirimasta. Totemo sugoi.

watashitachi wa uchi ni kaerimashita.

Basically, what I want to say is:

On friday, I went to london with my father by train. We went to saint paul's cathedral. The architecture was very beautiful.

After, we went to the tate modern. The artwork there was interesting.

After that, we went to the London museum. We saw some amazing artefacts.

Then, we returned home.