Carlsbad caverns
carlsbad
The Hall of the Giants or the Big room is the largest cavern in New Mexico and one of the largest in the world. The cavern has 357,469 square feet of floor space and can be found in the Carlsbad Caverns at the Carlsbad Caverns National Park just a short way from Carlsbad, New Mexico.
Carlsbad Caverns in New Mexico has more than 100 caves. A large cave named "The Big Room" is almost 4,000 feet long, 625 feet wide, and 255 feet high at the highest point. It is the fifth largest chamber in North America and the twenty-eighth largest in the world.
The answer is... The Gulf of Mexico
Silver.
its in Australia not Mexico
carlscad caverns
Mexico City
Spain
Chihuahua
Depending on how metropolitan area is defined, Tokyo or Mexico City.
Tokyo, Japan is the world's largest metropolitan area that has a population over 14 million. It is also one of the fastest-growing metropolitan areas in the world.
Yes; it is the third largest after Tokyo (Japan) and Seoul (South Korea).