Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

This stunning concert hall has become a symbol of Iceland's national recovery.

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

City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

A Montreal deli that was so beloved that it was allowed to circumvent their laws of language.

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

A castle built for love, and abandoned due to heartbreak.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

Three gardens with toilets and urinals filled with bright flowers started as a protest against zoning rules.

A gigantic 10-foot tall stone man.

This oversize piece of novelty cookware once cooked the largest pancake in the world.

An abandoned asylum where patients have been forgotten but their possessions remain.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

In DeWitt, New York, a blanket-wrapped gas station makes a creative statement on global dependence on oil.

A reversed traffic signal that was once violently misinterpreted as a statement on British-Irish relations.

This Art Deco fortress in upstate New York gives Manhattan's vaunted examples of the style a run for their money.

Surprisingly aquamarine waters fill deep lakes formed at the end of the last ice age.