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

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

This Hawaiian cattle ranch acts as a museum devoted to the island cowboys that predate the wild west.

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

This legendary urban waterfall creates a dazzling display of rainbows.

This replica of the Greek structure is in the heart of Nashville.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

This little valley along Highway 1 is engulfed by thousands of lilies during the spring season.

An obelisk commemorating Lincoln's role in connecting the coasts.

An idle pastime becomes a record holder in Boys Town, Nebraska.

A kaleidoscopic warehouse-maze of handmade neon signs.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

Swedish skyscraper with a 90° twist.

This chimerical bridge/tunnel appears to dead end right into the sea.

Sweden's "good old days" painstakingly re-created in a model village.

Stockholm's deepest subway station is also a stunning ecological wonder.

It houses the remains of a 17th-century version of the Titanic.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.