The biologist's fossilized headstone was meant to reflect his love of nature. Its, ahem, unusual shape is probably just a coincidence.

A sense of bewilderment encounters visitors when they happen upon this former railway bridge.

This modest relic, with rich history as a strategic fort through multiple eras.

A stone, covered in metal, commemorating an event that happened somewhere else a thousand years ago.

One of the largest hills in New Forest.

This toothy tower topper commemorates a valuable shark that washed ashore nearby.

A commemorative plaque at the door pays tribute to an "American Patriot" known for his betrayal.

A recently restored substation that dates from 1875.

This underpass became an unlikely piece of cinematic history after its appearance in 'A Clockwork Orange.'

The world’s oldest boat lift is also known in the United Kingdom as the "Cathedral of the Canals" and one of the "Seven Wonders of the Waterways."

The first regular high-definition TV transmissions were made from this seemingly out-of-place mast located on one corner of a Victorian-era entertainment venue.

One of London's lost rivers runs through a pipe over the tracks of this subway station.

Elaborate tile work in this railway station tells the story of Portugal.

Some of the most enduring novels in English literature were written within the walls of this Georgian-era building.

A well-worshipped shrine to the Virgin Mary nestled inside the last of Zagreb’s historic gates.

This holy spring and its well have been the site of religious devotion for millennia.

This replica pays tribute to the first powered and sustained flight in the United Kingdom and the eccentric aviator who enabled it.

A discarded movie prop that was the original monolith for "2001: A Space Odyssey."

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

A memorial for public executions that dates back to the 14th century.

A mysterious suspended hand greets unsuspecting visitors at the Tower of London.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

Tourists who rely on a transit map to find the iconic Beatles location often end up in a far-off neighborhood.

Though it's not the largest, this one-kilometer outdoor market is reportedly the longest in Europe.