The rusted remains of a victim of Hurricane Ike.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

Three bridges straddle a stream, one stacked upon the other.

The most playful of the life-sized statues that make up Singapore's "People of the River."

A lighthouse on a diminutive island was one of the first of its kind to guide seamen home.

This WWII plane died a quiet death, and is now a garden eel playground.

A sprawling nature preserve harbors the world's only living dragons.

This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

The deadliest diving spot in the world is also a stunning geological marvel.

A former gold rush boomtown has managed to stay in business for over 100 ramshackle years.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

Tubing through a cave lit with glowworms is a magical underground experience.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.