A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

This strange geological landscape erupts with sudden bursts of water.

The world's only complete colossal squid specimen is on display at the Te Papa Museum.

Handcrafted thermal spa washes away each night with the tide.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

This electric green sulphur lake in New Zealand looks like a cartoonish radioactive dump site.

The explorer Captain Cook may have named it White Island, but the Maori call it Te Puia o Whakaari – The Dramatic Volcano.

This sheep farm has been forever transformed since being built for “The Hobbit” film series.

Modern art meets modern convenience in possibly the world's most architecturally important public bathroom.

The world's oldest bookshop still in operation.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

The walls of the iconic dome are hollow and have a secret stairway.

A celebrity from the late Cretaceous period.

The last bastion of Roman presence north of the Alps looms over a German town.

This unattributed sculpture in Amsterdam is hiding in plain sight.

The world's longest wildlife overpass provides Hilversum's critters with a safe alternative to trying their luck on the roadway.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

This imposing Masonic temple a mile from the White House was the first public library in Washington, D.C.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

Once the local rulers had gone these enchanting ruins housed common folk in an almost real life fairy tale.

The gargoyles and grotesques of the 21st century are here—22 emoji built into a new building in the Netherlands.