This replica of the Greek structure is in the heart of Nashville.

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

This coffee shop lies hidden beneath a historic church.

An obscure walkway dedicated to a scientist who helped pave the way for the world to sit up and take notice of Manchester.

Artists and musicians now rule over this former rail station.

Two plaques commemorate the site of Shakespeare's first theatre.

A famous burial ground with a history both grim and literary.

This may be the last of London's wooden pavements, which were once a common sight in the city.

This historic building displays the remains of a victim of the devastating 14th-century plague.

A quiet memorial to those who died saving others in the heart of the City of London.

A portly statue of a golden boy commemorates an unusual cause of the Great Fire of London: the sin of gluttony.

The gigantic skull of a long-extinct species that once roamed the forests of England and Ireland.

This plaque in one of London's oldest public hospitals commemorates the first meeting of two of Britain's most famous literary heroes: Sherlock Holmes and Dr. Watson.

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

One of London’s rare Tudor-era buildings is a fate-defying gatehouse for a church.

Hidden in the courtyard of the Victoria and Albert Museum is a little-known tribute to two celebrity pooches.

Former hunting lodge of a duke who was an avid collector of impressionist works.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

The first green space constructed on an elevated viaduct.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

Shop at the 200-year-old store where Julia Child stocked up on copper cookware.

This stone angel is one of the biggest caryatids in all of Paris.

Beggars were miraculously "cured" of their fake ailments when they returned home to this 17th century Paris slum each night.