Scattered throughout London are ancient remnants of the city's former bounding wall.

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

The largest greenhouse in the world is home to over one million types of plants.

The remains of Crystal Palace Great Exhibition of 1851.

London's smallest police station is barely the size of a phone booth.

Eighty million natural history specimens call this gargantuan museum home.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

A fantastic castle rumored to be the birthplace of King Arthur.

Hear the quietest sound from across the dome.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

The longest hedge maze in the world.

Famously misunderstood wonder of the ancient world

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A massive stairway that almost wasn't leads to one of Australia's most scenic vistas.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

Come for the flowers, stay for the bats!

Twice a year, this Orkney town hosts a rowdy game of medieval mob football.

An icon of the Battle of Britain is frozen in flight in a grand Victorian museum.

A rare permanent monument to the Scottish Travellers.

This Arcadian garden in the Pentland Hills boasts over 270 artworks by Scottish artist and poet, Ian Hamilton Finlay.

Scotland still bears an enormous scar of its Roman past.

The old tradition of drying laundry on poles in the public green is still guaranteed by Glasgow city law.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.