A wall of chewing gum moonlights as collective art.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

This quirky piece of naval artillery has been deafening Canadians for over a century.

Surprisingly delicious Asian-style hot dogs.

A pixel art killer whale is frozen mid-leap in this Vancouver square.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

The U.S. Air Force has an anti-satellite laser weapon.

The most powerful laboratory radiation source in the world pulses with 1,000 times the electricity of a lightning bolt.

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

This pseudo-steampunk weapons facility is the world's largest wood and glue structure, and packs quite a wallop.

This downtown Dallas art installation is always on the lookout.

After an Illinois church was struck by lightning and burned down, Frank Lloyd Wright designed this replacement.

The first home and studio that belonged to the famous architect.

The last remnants of a lakeside airport that was bulldozed overnight by the mayor of Chicago.

A monument to the art of slicing people open.

An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

Illegal drag racing two stories beneath Chicago’s streets.

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

Sunset-colored dunes of volcanic ash make taking a poor photo impossible.

Hidden inside a gift shop that doubles as a museum, this gargantuan yo-yo can only be operated by crane.

The California capital city once stood 10 feet lower than it does today.

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

Concrete strongholds stand guard over the Golden Gate.

Ride on a fully-restored Nike nuclear-tipped missile elevator from the Cold War.