These ornate arches show how the course of the River Thames has changed.

Pop culture has helped to keep this iconic British building from being destroyed.

A living memorial to the trees London lost during the Great Storm of 1987.

Buried for centuries, this hidden cellar is all that remains of London's medieval Whitefriars Monastery.

A mysterious carving from 17th-century London seemingly depicts a young boy sitting on a bread basket.

A traditional American farmhouse plopped in the middle of a Piccadilly courtyard.

London's marvelous wildfowl reserve along the Thames.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

A collection of machines designed to break things for science.

A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

Used as an example in one of the first dictionary entries for "museum" in 1706.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.

The sumptuous ceiling was one of the last things Charles I saw before his execution.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

A measuring mishap led to these artificial stone ladies losing their stomachs.

This museum inside a museum tells the story of London's timepieces.

Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

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

A museum wholly devoted to juvenescence.

A giant roundabout made up of six smaller roundabouts can befuddle the uninitiated.