Intricate 14th-century floor tiles hidden underfoot in Winchester Cathedral

This cathedral's stained-glass patchwork of psychedelic colors and shapes was put in place long before the swinging 60s.

A medieval replica of King Arthur's legendary table, the Round Table hanging in Winchester Castle was decorated by Henry VIII.

This gravestone and its inscription inspired a movement that has spanned generations and saved countless lives.

The oldest working mechanical clock in the world.

This gate served as a small lock-up jail in the 14th century.

Now a memorial to merchant sailors and Titanic victims, this medieval church was destroyed by bombing raids in 1940.

This little-known wall in Southampton stands as one of the most unique and personal monuments to D-Day.

A memorial marking the original departure point for the two ships carrying the early English settlers to the New World.

This 700-year-old storehouse was a POW jail, aviation workshop, and Titanic memorial before becoming a brewpub.

A half-mile-long stretch of medieval forts built after a devastating pirate attack persists amid the modern port city.

One of America's founding fathers lived in this London lodging between 1757 and 1775.

The world's longest continuously running show has played at this small West End theater since 1974.

Mountain where Jesus was first tempted by the Devil.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

One of the best-preserved medieval streets in Europe.

The history of Greece is illustrated through banknotes.

This Greek Orthodox church houses the mummified body of St. Spyridon.

These two remaining restored marble fountains were part of a set of four which graced the corners of an important crossroads in Messina until the earthquake of 1908

The cathedral is not really remarkable except for the campanile with its astronomical clock and some amazing automatons which perform every day at noon

Plaques on its facade commemorate the Tiber's most destructive deluges.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

In the early Roman Empire, people deemed traitors and criminals were tossed to their deaths from this rock.

These hut foundations are believed to be the residence of Romulus, founder of Rome.