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

One of the world’s smallest bars, just 13 square feet, is brimming with speakeasy flair.

The mark of the Devil's horns on a marble column in Milan.

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

An artist's mausoleum with a haunting echo.

Tens of thousands of tiny bottles stuffed with various items.

This striking sculpture of Icarus honors Greece's fallen flyers.

Monasteries on rock pillars, once accessible only by frayed ropes.

The hallucinogenic center of the ancient world.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

What once sat in the world’s spotlight is today a largely disused ghost complex.

Thousands of miniature bronze sculptures have taken over this city square creating a unique art installation.

A serpentine highway twists and turns over the treacherous Norwegian Sea.

An intricately carved Viking church overlooks a glistening fjord.

Walk behind a 50-meter-high waterfall.

Monuments don't get much more metal than these three giant viking swords planted in a Nordic hill.

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

A thin pane of glass keeps visitors from sliding off this futuristic skywalk.

What might look like a cliffside sacrificial altar at first glance is actually a stone compass pointing to cities and lighthouses all around the world.

Norway's national monument to fallen seamen.

Art becomes an enchanting part of the environment at this wooded sculpture park.

A little Lady Liberty stands in the Norway town where the copper for the real thing came from.

This irregularly shaped sea fortress has defended not one but three different sovereign states.