To find the "unicorns of the deep" you've got to go downstairs.

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

A giant concrete orb in far north Iceland marks the ever-shifting boundary.

The oldest badlands in North America, Makoshika State Park takes it name from the Lakota words for broken land.

A scattered trail of street art adds a pop of color to the city's stark structures.

A celebrity from the late Cretaceous period.

The only fixed chain and post trail in Scotland snakes its way along the base of a towering seaside cliff.

From Coke II to Google Glass, this exhibit features some of the most spectacular commercial flops.

Six beautiful wooden giants are hidden around Copenhagen.

What might look like a cliffside sacrificial altar at first glance is actually a stone compass pointing to cities and lighthouses all around the world.

At the very tippity-top of Europe is a cliff from which you can view the midnight sun.

An ancient Viking village in North America that predates Columbus by 500 years.

One of the largest mechanical models of the solar system in the world.