Before the electric telegraph, a chain of stone towers carried messages across France.

An exquisite tunnel of cascading flowers.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

An ancient stone fortress considered by many to be the eighth wonder of the world.

This abandoned radar site is slowly being taken back by the jungle, its mission cut short by the end of the Cold War.

A geological bull's-eye visible from outer space.

One of the world's most complex timepieces.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

This massive underground salt mine now holds a sci-fi theme park in its depths.

Houses are tucked between, on, and underneath giant boulders.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

The remnants of an early American attempt at missile defense.

One of the world's largest ice festivals dazzles visitors for over a month with radiant sculptures and carvings.