Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A wood-and-steel sculpture garden featuring an artful interplay of nature and machinery.

Gigantic mosaic sculptures of the figures on Tarot cards fill this colorful Tuscan garden.

A 16th-century horror show built in a lovely Italian garden.

One of the few places where inexperienced snorkelers can spot a shark.

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

Stenciled handprints and wall paintings dating back 10,000 years, some of the earliest forms of cave art.

These 40,000-year-old stenciled hands are older than the famous cave art in France and Spain.

Despite the groans of archaeologists, this astounding groups of Bronze Age petroglyphs have been painted red for tourists.

These mysterious petroglyphs in Vermont reflect a troubled history in the treatment of Native American culture.

Constructed thousands of years ago, these stone circles offer incredible insight into the lives of the people who built them.

Abandoned Japanese ghost town gives a glimpse into what our own metropolises may leave behind.

An abandoned guano-mining city in the South Pacific.

Once the most densely populated place in the world, this island is now a ghost town.

A hub of information on tropical diseases and their treatments.

A sobering scientific reminder of the human damage caused by the advent of the nuclear age.

This town near Nagasaki is flecked with fruit-flavored bus stops.

This beautiful Japanese garden is a memorial to the samurai who literally wrote the book on business as martial art.

The largest volcanic caldera in Japan holds an entire city in its maw.

These seven moai figures are the world's only sanctioned replicas of the Easter Island originals.

The magical, mossy forest that inspired Princess Mononoke.

White beach sands made of the remains of tiny, star shaped creatures.

Rippling sand dunes frozen in the Arizona rock.

The world's largest Holstein cow.