As of my knowledge cutoff in September 2021, here are the top ten largest buildings in the world:

1.Burj Khalifa –

Located in Dubai, United Arab Emirates, the Burj Khalifa is currently the tallest building in the world.

Standing at a height of 828 meters (2,717 feet) with 163 floors, it is an iconic skyscraper and a major tourist attraction.

2. Shanghai Tower –

Found in Shanghai, China, the Shanghai Tower is the second tallest building globally.

It stands at a height of 632 meters (2,073 feet) with 128 floors. The tower’s unique twisting design is visually striking.

3. Abraj Al-Bait Clock Tower –

Situated in Mecca, Saudi Arabia, the Abraj Al-Bait Clock Tower is part of the larger Abraj Al-Bait complex.

It reaches a height of 601 meters (1,972 feet) with 120 floors. The clock face on the tower is one of the largest in the world.

4. Ping An Finance Center –

Located in Shenzhen, China, the Ping An Finance Center is the fourth tallest building worldwide.

It reaches a height of 599 meters (1,965 feet) with 115 floors. The tower houses offices, a hotel, and observation decks.

5. Lotte World Tower –

Situated in Seoul, South Korea, the Lotte World Tower

stands at a height of 555 meters (1,821 feet) with 123 floors. It is a mixed-use building featuring a hotel, residential units, offices, and an observation deck.

6. One World Trade Center –

Built in New York City, United States, as a memorial to the World Trade Center,

One World Trade Center reaches a height of 541 meters (1,776 feet) with 94 floors. It is the tallest building in the Western Hemisphere.

7. Guangzhou CTF Finance Centre –

Found in Guangzhou, China, the Guangzhou CTF Finance Centre

It is 530 meters (1,739 feet) tall with 111 floors. It houses a hotel, offices, and shopping malls.

8. Tianjin CTF Finance Centre –

Situated in Tianjin, China, the Tianjin CTF Finance Centre

It stands at a height of 530 meters (1,739 feet) with 98 floors. It includes a hotel, offices, and apartments.

9. CITIC Tower –

Located in Beijing, China, the CITIC Tower

It reaches a height of 528 meters (1,732 feet) with 109 floors. It serves as the headquarters for CITIC Group, a state-owned conglomerate.

10. TAIPEI 101 –

Found in Taipei, Taiwan, TAIPEI 101 was once the tallest building globally before being surpassed by the Burj Khalifa.

It stands at a height of 508 meters (1,667 feet) with 101 floors. The tower features a large tuned mass damper to counteract strong winds and earthquakes.