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

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

Three columns of volcanic rock shoot out of the ocean.

This subterranean necropolis holds three floors of antler-dug grave caves.

Stone Age solar temple is aligned with the sun on each equinox and solstice.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Small on the outside, big on the inside, this church is an astonishing act of visual deception.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The world's largest reflecting pool is just two centimeters deep.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

Over 3km of caverns and caves at the Switzerland-France border contain the largest underground river in Central Europe.

Large Hadron Collider and the Birthplace of World Wide Web.

A restaurant and observation deck built in a unique broadcasting antenna.

The Stonehenge of Wales is one of the grandest neolithic dolmens still in existence.

The UK's oldest theme park slowly slips away.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

An ancient Egyptian temple in the middle of Madrid, Spain.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

Breathtaking and huge 430 year old maps of Italy.

The yawning maw of this pagan visage is said to bite off the hands of liars.