请编辑以下这段文本，使其流畅易读。


原始文本：
It was a beautiful day outside the window of Mary's apartment. She decided to head out for a walk. During her walk, Mary saw a lot of beautiful things like flowers, tall buildings, and happy people. She felt grateful for the opportunity to be out and about, enjoying the lovely day.
Mary looked out the window of her apartment and saw a beautiful day. Feeling grateful for the opportunity, she decided to take a walk. During her stroll, she saw many beautiful things, including flowers, tall buildings, and happy people. She enjoyed the lovely day and appreciated her time outdoors.