Roman ruins top white travertine terraces formed by ancient hot springs.

A deadly ancient portal to the underworld.

These circular ruins are all that remain of a 17th-century Arctic whaling outpost.

This Arctic mining town is home to a cat that's spent years masquerading as a fox.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

Japanese national treasure originally built in 593 CE.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

This unique building in the main square stands out among the city's typically Baroque architecture.

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

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

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

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

This floating sculpture of ice is a poignant reminder of nature's power.

The world's largest moose statue towers above the highway between Oslo and Trondheim.

The painter of "The Scream" is laid to rest under a stoic bust of himself in the humble corner of an Oslo cemetery.

A Viking-style brewpub named for a Norse sea giant, in the heart of fjord country.

A short volcanic hill in Quito doubles as a stellar observation point of an iconic statue.

The world's tallest aluminum statue is also the world's tallest image of a winged Virgin Mary.

Quito's historic, main square dates back to the 16th century.

The gondolas let you glimpse a bird's-eye view of one of the world's highest capital cities.

In the northernmost city in the world, it's illegal to be buried because it’s too cold for bodies to decompose.

The world's northernmost brewery uses water from a 2,000-year-old glacier to create its beer.

This abandoned mining village was predicted to resist decay longer than any other modern human settlement.