Louise Bourgeois' 30-foot-tall steel spider sculpture.

Home of the world's smallest dinosaur footprints.

Cliffs that hold fossils, including the earliest known reptile, dating back more than 300 million years.

Iconic rock formations that allow for exploration during high or low tide.

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.

A mysterious spot where the laws of gravity seem not to apply.

These powerful, if squat, Canadian waterfalls flow in different directions depending on the time of day.

This massive solar system model is sprawled out across Maine's suburban wilderness.

The world's longest covered bridge is a quaint and incredible wooden tunnel.

The largest axe on the planet contains a time capsule that seems like it may never be discovered.