What is the largest man made structure in the world?

Answer 1

In terms of volume and length it is the Great Wall of China (just over 5000 Km). In area, it is the low lying area of the Netherlands that have been reclaimed from the Sea (which means that the usable land is technically "man made"). By height, it is currently the Burj Dubai. In extension (length) it would be the internet.

Answer 2

The largest mosque in the world is Al-Masjid al-Ḥarām(المسجد الحرام) or "The Sacred Mosque") or the "Grand Mosque".

This mosque is Located in the city of Mecca (or Makkah) in the Kingdom of Saudi Arabia. It surrounds the Kaaba, the place where Muslims turn around while offering daily prayers and is considered by Muslims as the holiest place on earth.

The mosque can accommodate up to 4 million worshipers during the pilgrimage (or Hajj) period, the largest annual people gathering in the world.

Answer 3

The Roman Catholic Church has the largest number of adherents.

Answer 4

Fresh Kills landfill in New York is larger by volume than the Great Wall of China.

Answer 5

Haram Mosque, Mecca, 4 million worshipers, serving for Hajj, Pilgrimage in Islamic World

Answer 6

The Republican House of Representatives

Answer 7

Christianity