Introduces ten of the world's largest caves, including the Carlsbad Caverns, Lascaux, Mammoth Cave, and Waitomo, with information on their location, features, animal inhabitants, and more.

Introduces ten major mountain ranges of the world, including the Andes, Himalayas, Rocky Mountains, and Tien Shan and describes their formation, length, height, plant and animal life, and human inhabitants.

"Describes in a countdown format 10 of the world's deadliest diseases"--Provided by publisher.

Describes in countdown format ten of the world's most dangerous snakes.

"Describes in countdown format 10 of the world's most dangerous bugs"--Provided by publisher.

"Describes 10 of the world's fastest animals in a countdown format"--Provided by publisher.

"Describes 10 of the world's most dangerous jobs in a countdown format"--Provided by publisher.

"Describes 10 of the world's most notorious crooks in a countdown format"--Provided by publisher.