A 19th-century architectural masterpiece with ties to Gustave Eiffel.

One of the most popular attractions in the small resort town of Kabardinka.

Nearly three tons of weapons from the Vietnam War still remain in this small, hidden museum.

A once-glowing grotto at the bottom of Waikapalae Wet Cave.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

A trash dump made beautiful by nature's power.

A grove of "candelabra redwoods" deep in California's Lost Coast.

A secluded, little-known temple hidden amid the dense jungle.

Planned as the world’s first zero-carbon city, it had lofty ideals—but is only 5 percent completed and aiming for 50 percent carbon-neutral.

These otherworldly formations were shaped over millions of years by the forces of nature.

This ancient theater was once the home of fierce gladiatorial battles.

A winery built on the site of a Gallo-Roman estate uses historical tools to recreate ancient vintages.

The world's largest bamboo labyrinth is a living demonstration of the plant’s immense potential.

This 16th-century monastery was founded to cloister the daughters of wealthy local families.

The Guinness Record holder for largest hedge in the world is a verdant Scottish bulwark.

Described by William Wordsworth as a "World of Wonder."

Perfume museum and library.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

France's Lilliputian park displays over 100 of the country's monuments for visitor perusal.

A total of 22 tiny bridges cross this canal of the Yvette River, forming a unique trail.

This medieval "painted village" is famous for its geometric facades.

A former reservoir that was only recently discovered after more than 60 years of disuse.

A cooled lava flow from the Haleakalā volcano formed these surreal-looking columnar basalt structures.

Surrounded by a smudge of dark earth, this isolated volcano sits in stark contrast to the surrounding Sahara.