Answer:
Dear Penfriend,
Greetings from the magnificent Taj Mahal in Agra, India! The ivory-white marble mausoleum built by Mughal Emperor Shah Jahan in memory of his beloved wife Mumtaz Mahal is truly a wonder to behold. The intricate carvings, symmetrical gardens, and the reflection pool all add to the beauty of this masterpiece. I am mesmerized by its grandeur and feel fortunate to have witnessed it in person. I will be returning home next week, and I cannot wait to share my experiences with you.
Best regards,
[Your Name]