These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

Ozymandias’ time-keeping temple.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

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

Medicinal spa created with the discharge from a geothermal energy plant.

Some of the greatest minds in the history of Hungarian art and science converged in this café.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

To the famous surrealist artist, liberty required two torches held high.

Former hunting lodge of a duke who was an avid collector of impressionist works.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

One of the last umbrella repair shops in Paris upholds the nostalgic art of umbrella making.

Trek into the depths of the cave where 17,000-year-old paintings exist alongside 400-year-old graffiti.

Claude Monet was baptized in this lavishly ornate Paris church.

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

This unique architectural wonder is also tied to one of the 20th-century's most renowned writers.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

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

The stunning interior of this Gothic church is covered in ornate gold details.

A hidden three-foot-wide house separates these two regal churches.