This whimsical stacked cabin looks like something out of a children's book.

This abandoned mine offers a glimpse at what life was like for those who came to Alaska seeking Gold Rush riches.

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

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

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

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

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

Buy your friend a drink or staple some cash to the wall for the next guy at the Salty Dawg Saloon.

This historic fort spans more the 300 years.

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

A 19th-century architectural wonder designed by the "father of the skyscraper."

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

Town full of spiritualists, some of whom are mediums, is still in full swing after 130 years.

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

When oil was discovered just outside of Pittsburgh, the city became home to this regional stock market.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

This riverside restaurant delivers elegant dining in a historic 1901 train depot. 

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

The god of wine stares out at passersby on this busy Pittsburgh thoroughfare.

These disused steel furnaces are now haunting ruins that may one day be a national park.

There are many ways to enjoy this old-growth forest and its views.