This skeletal, unfinished Gothic church once housed a miraculous masterpiece by Raphael.

This giant wire frame man sculpture is crouched in contemplation.

This still-celebrated home was a radical architectural experiment in 3D De Stijl.

The world's largest bicycle shelter can hold more than 12,500 two-wheelers.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

Famously misunderstood wonder of the ancient world

A circle stone within a stone circle.

The struggle of a small Dutch island against the sea.

The famous winding walk at Chartres is surrounded in mystery and myth.

The world's tallest bridge is also possibly the most elegant.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

A collection of biblical memorabilia.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

Nestled in the woods lies this land art project: a hybrid between park, maze and natural monument.