The sculpture of the deceased cockatoo flops atop its personal plinth.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

A 130-year-old urinal is the oldest of Stockholm and perhaps all of Sweden.

This Stockholm light tower can be controlled by anyone with a smartphone.

This chimerical bridge/tunnel appears to dead end right into the sea.

This ancient castle has been abandoned since the Edwardian conquest of Wales.

Where, exactly, the great aviator completed her transatlantic flight has caused some trouble in Wales.

The castle still holds traces of the abandoned Roman fort it was built atop.

A 19th-century funicular railway shuttles visitors up this surprising sea cliff to one of the world's largest camera obscuras.

High Victorian fantasy created a fairytale castle out of a ruined fortress in Wales.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

The stately remains of Llywelyn the Great's mighty fortress.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

In the midst of a living monument to Soviet social engineering, Polish Catholics built this church by hand.

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

This Polish cave has housed a dragon, a brothel, and an enduring legend.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

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

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

An enormous playhouse designed to look like 21 stacked Lego bricks, with another 25 million colorful Legos inside.

A model memorial to the original Odin Tower, the second highest tower in Europe before it was sabotaged by Danish Nazis.

Atop this former dutch railway office sits an interstellar work of art.

A spitting ode to a German serial killer.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.