Formerly Yugoslavia's "forbidden island," this sleepy little city still holds the abandoned remains of military strongholds.

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

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

An exquisite collection of fairytale conveyances that puts most car museums to shame.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

The modern birthplace of Irish freedom.

This colossal war machine is now a living museum dedicated to underwater warfare.

The heads of two giant mythological water horses honor Scotland's horselord past.

This tin chapel was built by POW's during World War II and is painted to look like something much more grand.

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

A giant white horse drawn on an English hillside may not have been intended to be a horse at all.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Elaborate tile work in this railway station tells the story of Portugal.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

The oldest working mechanical clock in the world.

An Irish Memorial commemorating those who perished due to potato blight.

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.