On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

An underground city of salt.

Abandoned ship reimagined as a street art canvas.

A tiny village in Wales claims the name of a noble medieval hound slain for a crime he didn't commit.

This Welsh village gave itself a ridiculous name in a publicity stunt a century ahead of its time.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

Two women with a flair for both adventure and artful clutter created this singular round home.

Wooden sleds have replaced donkeys to cart goods around this utterly charming car-free village.

This ancient theater was once the home of fierce gladiatorial battles.

A building so large that it has its own weather.

Petting this mysterious iron monkey supposedly brings good luck.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

The signs of a long buried road can still be found hidden beneath a London sewer grate.

This hilarious English intersection is an automotive whirlpool.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

The only medieval bridge in Britain with its defensive tower still in tact.

The largest of only eight working transporter bridges left in the world.

A moving memorial to the fallen and missing from WWI trenches.

A rare example of World War I trenches from the British front.

This natural crater along the coast of Jersey may take its name from the devil statues who have watched over it.

Once-buried markers show England’s lowest land point keeps getting lower.

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