This huge pile of volcanic boulders hides a stunning network of secret grottoes.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

A luxury hotel constructed out of a former jail.

Follow the steps, and this roadside artwork will teach you how to dance.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

The colorful, smiling concrete silos of Vancouver.

What happens when a sculptor has to find a way around a 100-year-old copyright.

This conservatory allows a little bit of the tropics to thrive in the middle of a major Canadian city.

The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

The highest point in Delaware is located under a trailer so this marker across the street will have to do.

Explore the dark underground corridors of this graffiti-covered former military fortification.

Tucked away in a corner of a Maine general store there was a museum devoted to an equally beloved and reviled local soft drink.

This tiny patch of arid sand sits in one of the greenest states in the United States.

A contemporary fresco movement illustrates the region's rich history.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

Immortalized in bronze, this frazzled student will be glued to his screen for centuries.

An ideal location for plane spotting in British Columbia.

Wading through a small lagoon reveals a secret, wild stretch of pristine beach.

This enormous photomural pays homage to Vancouver's infamous history of public activism.

An effigy of Vancouver's Gastown neighorhood's namesake.

A hat for every occasion can be found in this British Columbia haunt.

Two graffiti towers stand like ghosts of Vancouver's World War II-era defensive outpost.

Surprisingly delicious Asian-style hot dogs.

A unique spiral staircase that doesn't quite make it up to the top floor.