This abandoned subway station can still be seen on regular commuter trips.

Abandoned since the 1950s, the streetcar lane beneath the heavily trafficked bridge lays empty and unused.

This old mill and former police station now present a world-class collection of Orthodox iconography.

An old church full of restored Catholic statues is a makeup artist's labor of love.

A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

Around 100 sculptures from artists all over the world decorate the hiking trails surrounding this locale.

Giant statue of a disembodied head.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

A set of 27 bamboo tubes creates an eerie soundscape that changes with the wind.

More than 200 unconventional musical instruments that anyone can play.

A beautiful display of nearly 50 bells crafted with a unique design and distinct sound.

A collection of huge, site-specific sculptures sitting in the Montana woods.

A canvas of crops grow from vibrant red soil in this terraced farmland.

It took an artist 20 years to create this sprawling sculpture garden honoring the area's ancient inhabitants.

A little-known sculpture park of contemporary environmental art in a Lapland forest.

Quirky outsider art transforms this garden shop into a little stone fantasyland.

The long underground cave's curiously shaped stalagmites have inspired many legends.

Stunning wetlands ablaze with pink lotus flowers.

Modern design and unusual architecture make this mountaintop temple no ordinary Buddhist retreat.

A remarkable lava formation encloses a line of Buddhist statues that can't be accurately counted, according to local mythology.

A beautiful collection of architectural ornaments rescued from demolished New York City buildings.

Teeny tiny hotel on the coast of the Canary Islands.

On La Gomera, "Silbadors" communicate in a 4,000-word language of whistles.

A city continually buried under the ash of a volcano that has been erupting for more than 15 years.