A secret meeting in this small cottage changed the course of British history.

The small Scottish townhouse where the "Father of the National Parks" was born.

One of the greatest movie directors of all time lived and worked in this London flat from 1926 to 1939.

Charles Dickens described the concert room in this amazing Victorian hall as "the most perfect room in the world."

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

Spend the night in this formerly abandoned traditional Scottish village.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

This medieval manor house was equipped with secret compartments for hiding priests.

The oldest of the three remaining bridges in England with buildings on top of them.

The bell that once tolled atop a lost Edinburgh gate now hangs for all to see.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

This 16th-century close preserves an unusual piece of Edinburgh's transportation history.

Brass bricks outline the locations of Edinburgh's lost, lively market stalls.

The location of a citizen uprising that led to a gruesome act of mob justice.

This Roman relic was discovered in Scotland by a mudlarking ferryman.

A series of three shiny letters mark the boundary of an old refuge for those being pursued by debt collectors.

Built to hold the worst of the worst of the Nazi war prisoners.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

Nature is slowly overtaking this disused cemetery on the outskirts of Brussels.

The oldest active church in Pennsylvania is also the second oldest Swedish Church in the United States.

America's smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.

This temple was constructed entirely by Roman soldiers.

Legend has it that seven Anglo-Saxon kings were coronated on this stone, located in the appropriately-named town of Kingston.