Astonishing rock formations dot the Brimham Moor landscape.

A historic Georgian building and warm springs.

This chain of artificial lakes was an ideal test ground for the aircraft that would carry the "bouncing bombs" used by the WWII "Dambusters" squad.

Semi-precious Blue John stones have been mined in this cavern system for centuries.

The 20-mile causeway that separates the Netherlands from the sea.

The largest airborne operation in history was launched to capture this bridge.

Once the longest swing bridge in Europe.

Hamburgers are intensely proud of their tunnel beneath the river.

Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

One of the last remaining railway viaducts equipped with a transporter ferry.

This monument to those fallen in the World Wars is accompanied by a U-boat that Germany bought for a Deutsche Mark.

The world's first and only three-segment bascule bridge folds up into the shape of a capital "N" to let boat traffic through.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

This bridge's unique architecture honors nautical heritage and encourages self-awareness.

This contemplative sculpture made out of old machine parts is meant to be the first in a series of sculptures around the world.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

A favorite with sightseers, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

At 1,732 feet above sea level, this spectacularly isolated yet surprisingly bustling bar is the highest pub in Britain.

At high tide, the base of the lighthouse covers practically every inch of the island.

An unexpectedly extraterrestrial room in a former Victorian resort club.

One of the few surviving street funiculars in the world.

After mysteriously refusing to surrender at the end of World War II this sunken submarine was only salvaged in a search for Nazi gold.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

A hundred copies of Antony Gormley's naked body stare out across the water.