Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

A clear example of the process of erosion in action.

Legend holds eating just one of these black eggs can add seven years to one's life.

Open-air museum with an elaborate sculpture garden, stretching for over 70,000 square-meters.

The original "capsule building" is a masterpiece of Metabolist architecture.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

Ice cream stand, snack bar, and time capsule of milk conveyance.

The Boston square dedicated to the dark poet who was born nearby.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

Narrowest house in Boston.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

A mysterious stone embedded at the base of a historic Boston building.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Hundreds of bras, blowing in the wind.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

A tunnel of hardened lava along Maui’s famous Road to Hana.

A beach made of semi-precious green sand on the Big Island of Hawaiʻi.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

Watch the newest land on the planet form before your eyes.

These ancient sacred grounds granted amnesty to those who managed to reach them.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.