Bridges, piers and oil platforms are prime real estate for attracting marine life, from tiny critters to oceangoing giants. Here are some of the world's best.

Based on the opinions of thousands of divers from across the globe, our annual Top 100 Readers Choice Awards showcase the best scuba diving in the world.

One of our most coveted awards: Find out which operators, resorts and liveaboards made our Top 100 Gold List!