This book briefly examines ten of the world's castles.

This book briefly describes ten of the world's natural and man-made monuments.

This book explores pyramids around the world.

Profiles ten of the world's most distinctive dams.

This book briefly discusses ten of the world's most noted national parks, and describes some of the dangers they face.

Looks at ten of the most distinctive lost cities, from the legendary Atlantis to the ancient city of Petra that was rediscovered by Europeans in the early 19th century.