骑车观感

我骑着自行车的时候看到了很多东西。有一条很有名的河穿过我的城市，它叫Mississippi River（密西西比河）。沿河有很多名胜古迹，Mill City Ruins(密尔城遗址)是其中最有名的地方之一。

这里有很多花和树，很多人喜欢在这里参观拍照。沿着河每天都会有很多人散步或者在这里跑步锻炼。夜幕降临，城市的灯光会照亮这片古迹的生机，更是吸引情侣聚此闻涛赏月。（Did you mean people or animals?） 

While I ride my bike I see many things. There is a river through the middle of my city. It is called the Mississippi River. It is very famous. Along the river are many historic sites and scenic places. Mill City Ruins is one of the most famous of these places. Many people like to visit and take pictures. There are a lot of trees and flowers. Every day many people walk or run along the river. At night I can see the city lights on the river. The city lights beautifully illuminate the ruins.Lovebirds flock to the ruins to listen to the river and admire the moon.

我骑我的自行车

我一边骑我的自行车一边多事。(我一边骑我的自行车一边 看到 很多 事物. there is no word means "see" in your original sentence. "事物" in chinese always express "things like objects" but "事" in chinese like something to be done... like books, rocks, bikes are "事物", washing, running are"事")

有一条河在我的城市中。(在我的城市中有一条河)

这条河叫Mississippi River。

这条河是很有名。（if you want to say"it is very famous", just "这条河很有名" is okay. if you want to say "it indeed is famous ", you can say "这条河（的确）是很有名"）

沿河有很多名胜和估计。（not"估计"，but“古迹”。"估计" means"estimate" or"evaluate"）

Mill City Ruins是最有名的这些地方之一。

很多人喜欢参观拍照。

有多树和朵花。(有很多 棵 树 和 很多 朵 花)

天天多人沿河跑步或者走路。（每天都有 很多人沿河跑步或者走路）

我能晚上在河上看城市的灯。（我能 在 晚上在河上看城市的灯）

城市的灯漂亮地烛遗址。（not 烛，but 照亮。 "烛" usually uesed as a noun, means"candle", i look up dictionary, when used as a verb, it indeed mean"illuminate". but usually we do not use it that way. it like ancient chinese.）

情侣鹦鹉蜂拥去遗址听河赏月。

It seems like a beautiful place! Is that in your hometown?  

I am not major in Chinese, but i am a native Mandarin speaker, hope that i can help you.

I also want to improve my ability to speak and use English and I am now seeking for a language partner. So if you are interested, please contact me.

我骑我的自行车

我一边骑我的自行车一边多事。有一条河在我的城市中。这条河叫Mississippi River。这条河是很有名。沿河有很多名胜和估计。Mill City Ruins是最有名的这些地方之一。很多人喜欢参观拍照。有多树和朵花。天天多人沿河跑步或者走路。我能晚上在河上看城市的灯。城市的灯漂亮地烛遗址。情侣鹦鹉蜂拥去遗址听河赏月。

You have great corrections because your topics are interesting.  Instead of correcting, I am showing you another version to express the eloquence in your English version :)  It is not going to be a direct translation but the intent expressed in cultural preference.

While I ride my bike I see many things. 当我在自行車上, 可見到許多东西. There is a river through the middle of my city. It is called the Mississippi River. It is very famous. 我家乡有條河被分隔, 其名是 「密西西比河」Along the river are many historic sites and scenic places. 两岸遺跡胜景什多, Mill City Ruins is one of the most famous of these places.其中最馳名的是 「磨厂遺址」城Many people like to visit and take pictures. 有很多旅客来此观光拍照. There are a lot of trees and flowers. Every day many people walk or run along the river. 為因树木花朵藹藹, 每天有很多人到来漫步或在跑步. At night I can see the city lights on the river. The city lights beautifully illuminate the ruins. 每个晚上我也从河辺看到城中的灯彩 把 那些废墟故跡顯得錦綉动人. Lovebirds flock to the ruins to listen to the river and admire the moon.情侶群拥到来听涛观月.

1.  蜂拥 is not approrpiate here.  Swarming indiscriminately like bees, having an unsavory connotation i.e. having public sex etc.  From the idiom, 招蜂引蝶 or 招蜂惹蝶, for a girl to make herself pretty to attract the opposite sex.

2.  听涛 = listening to the waves, ripples, etc.  Chinese creative pieces, unlike English, prefers to be more oblique and hence more poetic.

我骑我的自行车

我一边骑我的自行车一边看到很多事。在我的城市中有一条河在我的城市中。这条河叫Mississippi River（密西西比河）。这条河是很有名。沿河有很多名胜和古迹估计（“估计 gū jì is a verb means "to estimate” and 古迹 gǔ jì is a noun means "historic site". And "名胜" & "古迹" are often combined together as "名胜古迹"）。Mill City Ruins（米尔城遗址）是这些地方中最有名的这些地方之一。很多人喜欢参观拍照。有多树和朵花。天天都有很多人沿河跑步或者走路。我能晚上（Better to say “晚上我能”）在河上看城市的灯。城市的灯漂亮地烛照亮遗址。情侣鹦鹉情侣们（Haha, "情侣鹦鹉" literally means "lover parrots", that's a slang in English but no corresponding one in Chinese. In Chinese, just say "情侣们"）蜂拥去遗址听河赏月（This is a very classic sentence, did you hear a similar one from somewhere before?）。

While I ride my bike I see many things. There is a river through the middle of my city. It is called the Mississippi River. It is very famous. Along the river are many historic sites and scenic places. Mill City Ruins is one of the most famous of these places. Many people like to visit and take pictures. There are a lot of trees and flowers. Every day many people walk or run along the river. At night I can see the city lights on the river. The city lights beautifully illuminate the ruins.Lovebirds flock to the ruins to listen to the river and admire the moon.

我骑我的自行车

我一边骑我的自行车一边看到很多事。有一条河在我的城市中，这条河叫Mississippi River。这条河是很有名。沿河有很多名胜古迹和估计（estimate?）美景。这些地方中Mill City Ruins是這其中最有名的。很多人喜欢参观拍照。有多树和花朵/花。天天每一天都有很多人沿河跑步或者走路。晚上，我能在河上看城市的灯。城市的灯漂亮地烛照亮著遗址。情侣鹦鹉蜂拥前去（遗址）听河赏月。

While I ride my bike I see many things. There is a river through the middle of my city. It is called the Mississippi River. It is very famous. Along the river are many historic sites and scenic places. Mill City Ruins is one of the most famous of these places. Many people like to visit and take pictures. There are a lot of trees and flowers. Every day many people walk or run along the river. At night I can see the city lights on the river. The city lights beautifully illuminate the ruins.Lovebirds flock to the ruins to listen to the river and admire the moon.

*Lovebirds means couples, right ? 

  So you can say 情侶 is fine, but if you really want to express they are very intimately then you can plus

  a adjective “熱戀中的” <-- It means in love ~

*鹦鹉 is kinds of birds, so we were't use that.