17th century streets hidden under Edinburgh were once a breeding ground for the black death.

The United States Capitol's former columns still stand.

Ruins of a German Castle on top of a towering stone pillar.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

America's most famous piece of self-built architecture.

A natural gas leak provides a flickering flame beneath a waterfall.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

An Aztec snake god has taken the material form of an apartment complex.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

Rising from the sea like a stone monster.

Monasteries on rock pillars, once accessible only by frayed ropes.

Enormous lake at the bottom of a unique cave system.

Northern Ireland's Brobdingnagian stepping stones.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

A serpentine highway twists and turns over the treacherous Norwegian Sea.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

A hand-built folk art installation covered with messages of God's love.

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

Towering basalt columns, a creation of fire and ice.

A trash dump made beautiful by nature's power.