List of tallest buildings and structures
Tallest building by function
* "Mixed-use" is defined as having three or more real estate uses (such as retail, office, hotel, etc.) that are physically and functionally integrated in a single property and are mutually supporting.

List of tallest buildings and structures

Section Title: Tallest building by function
Table Section Text: * "Mixed-use" is defined as having three or more real estate uses (such as retail, office, hotel, etc.) that are physically and functionally integrated in a single property and are mutually supporting.

Category	Structure	Country	City	Architectural top (metres)	Architectural top (feet)

Mixed-use*	Burj Khalifa	United Arab Emirates	Dubai	830	2,722

Office	One World Trade Center	United States	New York City	541	1,776

Military structure	Large masts of INS Kattabomman	India	Tirunelveli, Tamil Nadu	471	1,545

Residential	432 Park Avenue	United States	New York City	425.5	1,396

Hotel	Abraj Al-Bait Towers	Saudi Arabia	Mekka	601	1,972

Scientific research tower	Amazon Tall Tower Observatory	Brazil	160 km NE of Manaus	325	1,066

Educational	Moscow State University	Russia	Moscow	240	787

Religious	Hassan II Mosque	Morocco	Casablanca	210	689

Hospital	Outpatient Center, Houston Methodist Hospital	United States	Houston	156.05	511.8

Sentence(s)

INS Kattabomman is the 4th tallest structure in the world.

final_sentence: INS Kattabomman is the 4th tallest structure in the world.