مدخل المتحف قرب المحطة.

Because Arabic often uses a nominal sentence in the present tense, with no word for is/are.

So:

• مدخل المتحف = the museum entrance
• قرب المحطة = near the station

Together, the sentence means The museum entrance is near the station, even though Arabic does not explicitly say is here.

This is an iḍāfa construction, often called a construct phrase.

It is made of:

• مدخل = entrance
• المتحف = the museum

Together, they mean the entrance of the museum or more naturally in English, the museum entrance.

A key rule of iḍāfa is:

• the first noun does not take ال
• the second noun can be definite, and that makes the whole phrase definite

So مدخل المتحف is definite even though مدخل does not have ال.

Because in an iḍāfa construction, the first noun normally does not take ال.

So you say:

• مدخل المتحف = the museum entrance

not:

• المدخل المتحف ❌

If you put ال on the first noun, you usually break the iḍāfa structure.

Here it means the museum entrance.

Even though مدخل has no ال, the whole phrase is definite because the second noun is definite:

• المتحف = the museum

In iḍāfa, definiteness is determined by the second noun. Since المتحف is definite, مدخل المتحف is also definite.

Here قرب means near and functions as a location expression.

In traditional grammar, it is often treated like a noun used adverbially, something like in the vicinity of / near. That is why it is followed by another noun in the genitive:

• قرب المحطة = near the station

So even though in English near is a preposition, Arabic قرب behaves a bit differently.

Because قرب needs something after it to show near what.

So:

• قرب = near
• المحطة = the station

Together:

• قرب المحطة = near the station

The noun after قرب is in the genitive relationship, similar to what happens in iḍāfa.

A fully vowelled version would typically be:

مَدْخَلُ الْمَتْحَفِ قُرْبَ الْمَحَطَّةِ

The endings are:

• مَدْخَلُ — nominative, because it is the subject/topic of the nominal sentence
• الْمَتْحَفِ — genitive, because it is the second part of the iḍāfa
• قُرْبَ — accusative, because it is used as an adverbial expression of place
• الْمَحَطَّةِ — genitive, because it follows قرب in this construction

In everyday unvowelled Arabic text, these short vowels are normally not written.

Both م and ح are moon-letter consonants, so the ل in ال is pronounced clearly.

So you say:

• المتحف = al-matḥaf
• المحطة = al-maḥaṭṭa

You do not assimilate the ل here.

That is different from a word beginning with a sun letter, where the ل would blend into the next consonant.

The sentence is:

• مدخل المتحف = the topic / subject
• قرب المحطة = the predicate / information about location

So the structure is basically:

• [noun phrase] + [location phrase]

This is a very common pattern in Arabic for saying where something is:

• الكتاب على الطاولة = The book is on the table
• المدرسة قرب البيت = The school is near the house

So مدخل المتحف قرب المحطة follows a very normal Arabic pattern.

Yes. That is another natural way to express a similar meaning.

• مدخل المتحف قرب المحطة = The museum entrance is near the station
• مدخل المتحف قريب من المحطة = The museum entrance is near the station

The second version uses:

• قريب = near
• من = from

Both are correct, but the structure is different:

• قرب المحطة = a location expression
• قريب من المحطة = an adjective-like predicate plus من

Not exactly.

• مدخل means entrance or entryway
• باب means door or gate

So مدخل المتحف is the museum entrance, not necessarily just the museum door.

Depending on context, باب المتحف could mean a specific physical door, while مدخل المتحف refers more naturally to the entrance area or way in.