A hugely vast Irish landscape of barren rock that stretches for miles.

The ruins of an 800-year-old monastery boasts the tallest round tower in Ireland.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Preserved "bog person" that is over 2,000 years old.

Old Danish castle immortalized in Shakespeare's Hamlet.

Copenhagen's celebrated theme park and gardens.

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

This Cambodian riverbed is covered in ancient Hindu carvings both above and below the waters.

Hoax, mistake, or evidence of dinosaurs in human times?

A battle between nature and architecture in the Cambodian jungle.

The field of tiny caves that mark this Chinese cliffside are each their own historic Buddhist temple.

This Tang Dynasty behemoth is the biggest Buddha in the world.

Hidden behind musical flora and forgotten for over a thousand years, this cave is now a neon dream.

Why walk on this historical site when you can zoom down instead?

The most famous location in China was home to whole dynasties worth of imperial rulers.

An underground city of salt.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

The silly symbol for an underground protest group is now scattered around the city.

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

A statue honors the children who fought Nazis in Poland.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

This man-made mound monument was built out of soil from all across the Polish empire.