A sulfuric martian landscape that looks far better than it smells.

The largest lake in the Faroe Islands seems to be held hundreds of feet above sea level thanks to an optical illusion.

This remote island village was in danger of depopulating completely until a tunnel was built to connect it to the rest of the world .

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

The best place in the world to buy tinned fish.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

A pair of gigantic baby heads greet passengers at Atocha Station.

A lush indoor jungle fills this bustling Madrid transportation hub.

The Tudor-style cottage in the middle of the square is not quite what it seems.

These grandstands are among the oldest continuously used stands in the world.

An avant-garde artist is survived by his seaside garden.

This skewed English house has looked like it's going to fall over for centuries.

Today, Kent's medieval monarchs hold court on a busy pedestrian thoroughfare—or at least their statues do.

A defensive structure built during the Hundred Years War has remained useful in one way or another for nearly 700 years.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

Once the largest unsupported dome in the world, beating out the Pantheon and St Peters in Rome.

A historic Georgian building and warm springs.

The wreck of a B-29 Superfortress now stands as a memorial left in the moors.

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

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

A Victorian Fort built into the chalky cliffs that overlook the English Channel.

England's most notorious suicide spot.

This reconstructed Norman castle is the world's most accurate, from location to livestock.

It's believed emperor Hadrian himself funded this once architectural wonder.