The ruins of a town wiped out by the second-largest earthquake in recorded history.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

This WWII-era military installation once held an entire city within its walls - now, its walls are falling down.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

Pay homage to a preeminent matriarch, and the native Dena’ina people, at this sculpture installation in Anchorage.

During the summer, surfers in Alaska take advantage of this inlet’s unusual water patterns.

Considered by many to be one of the most dangerous highways in Alaska.

Clean, cold drinking water flows from a nondescript pipe in a roadside rock face.

The now-serene site of the largest earthquake ever recorded in North America.

While not recognized by Guinness, this chocolate waterfall is likely to be the world's largest.

This popular fishing spot at the outflow of a 4.5-mile long hydroelectric tunnel sports a jetty literally made out of classic cars.

A suburban street in Anchorage doubles as a runway, and each home has its own airplane hangar.

A high school astronomy enthusiast designed this model of our solar system to be traversed on foot.

Colorful boxes placed over the dead are left to rot and crumble.

Internationally recognized group that works to protect the wolf and educate the public about its plight.

Siberian husky that delivered a life-saving antitoxin.

This Hungarian stilt village is built in a lake that never freezes over due to the power plant that that uses it as a cooling pond.

An Alaska livestock farm devotes itself to harvesting wool from creatures that once ran with mammoths and sabertooth tigers.

The only house built with a turret, crenellations, and a moat in Palmer, Alaska.

This Alaska library may be the only one in the country that allows you to check out pieces of taxidermy.

The ruins of an important pilgrimage destination for worshippers of a Maya fertility goddess.

At more than 5,000 years old, these structures are among the oldest free-standing stone buildings in the world.

These medieval funerary monuments are now home to a colony of critically endangered vultures.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.