An architect's childhood fantasy treehouse made real.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

One of the largest collections of wildlife art in the United States, built into the side of a cliff in rural Wyoming.

Few other hotels can rival the grandeur of the Castle in the Rockies.

Though many were skeptical at first, these animal-specific routes across the Trans-Canada Highway have been a major conservation success.

This 20-foot-tall sculpture is in honor of the herd of bighorn sheep that call Radium Hot Springs home.

Spectacular views await visitors to this lake.

The only road through the heart of Glacier National Park.

Crystal clear, drinkable mountain spring water by the side of the road.

Visit a church sculpted from hardened lava.

The metal bird, nicknamed "Sandy," stands nearly 40 feet tall and is an homage to the birds that migrate through North Dakota every year.

An ode to one of the first concerts broadcast via satellite.

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

During the solar phenomenon "Lahaina Noon" this bendy, curvy sculpture forms a perfectly circular shadow on the ground.

Hawai'i's oldest wooden house was shipped around Cape Horn from Boston in 1820.

Illegal drag racing two stories beneath Chicago’s streets.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This exhibit allows visitors to wander through the interior of a replica Ice Age glacial cave.

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

An underground blaze turned this village into a ghost town.

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

A toxic ghost town sitting atop a massive coal fire.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.