At the hotel. Why? The front of the hotel should be marked with

Because it means, specifically, it means near this hotel.

The usage of the definite article the:

Used before nouns to indicate direction and orientation.

The east of the east; West west; Right; Left, left.

Note: When locative words are used in pairs to form a coordinate structure, there is no definite article.

The river is two thousand miles long from east to west.

Used before ordinal numbers.

The definite article is used before ordinal number, next, last, etc. Before the word "same" or "unique". For example:

He is the only one who knows the secret. He is the only one who knows the secret.

This is just the book I want. This is just the book I want. (with great emphasis)

Note: the ordinal number is preceded by the indefinite article a/an.

He bought a second pair of shoes. He bought another pair of shoes.

Used before musical instrument nouns to indicate performance.

She can play the piano/violin/guitar.

Used before the names of rivers, oceans, lakes, islands and mountains.

Yangtze river; West Lake West Lake; Pacific Pacific; Rocky Mountains Rocky Mountains

Used before proper nouns consisting of common nouns and other words.

Great Wall Great Wall; United Nations; New york Times new york Times

Used before some adjectives to indicate a class of people or things or an abstract concept.

An elderly man; Poor people; Beautiful things

Note: when expressing people, being the subject depends on the plural meaning; When expressing things, treat them as uncountable meanings.

Used before the plural form of surname, indicating the whole family and husband and wife.

The greens will move to the country. The greens are moving to the country.

Used before a noun indicating a unit of calculation, it contains the meaning of "every".

John is paid by the hour. Jim is paid by the hour.

Used before the noun of human body parts or clothes already mentioned.

This usage is to say the whole object first, then the body parts or clothes of that object.

Verb (hit, pull, pat, strike, grasp, take and lead) +sb preposition (zai, shang, you, span)+body part or clothes.

She touched him on the shoulder. She touched him on the shoulder.

Note: She patted the boy on the head. (Error, one's is not used for body parts or clothes in this structure)

She patted the boy on the head. (positive)

Used before the plural of every ten to indicate the year.

The war broke out in the 1940s. The war took place in the 1940s.

Before nouns used to represent natural phenomena.

Rain; Wind; Fog; Heavy snow; air

Note: ① When these nouns are modified with adjectives, you can use indefinite articles to mean "one field, one session, one kind".

It rained heavily last night. It rained heavily last night.

(2) When these nouns refer to general substances, no articles are used.

Without air, people can't live. Without air, people can't live.

Used in some idioms

In the morning; At night; In the field; At home; In the sun; In the distance; On the right; By the way; During the day; Go to a concert; At the beginning; All the year round; Wait a minute.

Note: The following phrases are not preceded by definite articles:

At dawn at night, at noon, at noon

At dusk