A wall of debris stretching about 30 miles (50 km) may be the remnants of a natural disaster that struck Mexico's Caribbean coast more than 1,000 years ago in an area where tourists now flock to beach resorts and ancient Maya ruins.
A . . .
A wall of debris stretching about 30 miles (50 km) may be the remnants of a natural disaster that struck Mexico's Caribbean coast more than 1,000 years ago in an area where tourists now flock to beach resorts and ancient Maya ruins.
A . . .