Do you recognise these iconic listed buildings?

Britain is a nation famed for some truly exceptional architecture – so good in fact that a set of grades were brought in to protect it.

These sites are just like any others in the UK and some lucky delivery men will get to see them in all their glory.

Listed buildings fall into three grades – Grade I, Grade II* and Grade II – and once granted, special permission is needed to alter them.

There are fewer than 10,000 Grade I listed buildings in the UK – those deemed to be of exceptional, and sometimes even international, importance.

Just 2.5% of all listings – of which there are nearly 375,000 – are Grade I, showcasing how rare these buildings are across the country.

Here we look at some of the more iconic Grade I sites that posties have to deliver to across the UK – how many do you recognise?

Palace of Westminster

Both Grade I listed and a UNESCO World Heritage site, the home of both the Houses of Commons and the House of Lords was first built in the middle ages.

Ravaged by fire on several occasions and hit by bombs during the Second World War, the Palace was rebuilt each time into the sensational structure which stands today.

Clifton Suspension Bridge

Spanning the Avon Gorge in Somerset, the suspension bridge can trace its roots to an initial design by Isambard Kingdom Brunel.

Completed in 1864, two mean lost their lives constructing what is now considered to be a distinctive landmark – one which featured in images of the last ever flight of Concorde in 2003

One of London’s most iconic landmarks, the bridge took eight years to complete and takes its name from the nearby Tower of London.

Painted red, white and blue to celebrate the silver jubilee of Queen Elizabeth II, the current design has been in place since 1977.

Warwick Castle

Originally built by William the Conqueror just two years after the Norman Conquest, Warwick Castle dominates the landscape.

It served for military purposes until the early part of the 17th century when it was converted into a country house, while the museum on site now houses one of the world’s largest working siege engines – an 18 metre tall Trebuchet (seen in action above).

Home to the world’s first non-combustible warehouse, the complex of dock buildings and warehouses in Liverpool – the largest group of Grade I listed buildings anywhere in the UK – marked a turning point in the revolution of building work.

Shipping could be loaded to and from the warehouses directly and while the dock cranes fell silent in 1972, the site remains a major tourist attraction.

Windsor Castle

A royal residence, Windsor Castle is both the oldest and the largest inhabited castle in the world and can trace its roots back to the 11th century.

Destroyed by fire in 1992 but spectacularly rebuilt, the castle is both a major tourist attraction and a venue for state visits – although most post here goes via special delivery!

Another of the Queen’s residences, the iconic building is up there with the White House when it comes to some of the most recognised locations.

The Queen’s Guard are stationed on site at all times, and the changing ceremonies are also popular with tourists, keen to see the military in action.

Blackpool Tower

Dominating the landsacape in Blackpool is its iconic Tower which provides exceptional views of the surrounding landsacape.

The glass Skywalk at the top of the tower – a glass floor enabling visitors to look down – can withstand the weight of two elephants, although it understandable if people don’t wish to try it out!

As you can, the UK post men and women can deliver to a wide array of truly spectacular locations!