This captivating Bronze Age timber circle spent centuries concealed by the tides.

This astronomical clock is the second oldest in England.

Victorian-era Londoners really wanted to believe this 17th-century cistern was actually an ancient artifact.

This strategically placed hill fort has served defensive forces from the Iron Age up until the 20th century.

One of the figures in this Celtic sculpture continues to puzzle archaeologists.

These Roman ruins in England’s Lake District are 2,000 years old, but look pretty good for their age.

Rare collection of medieval books under lock and key.

Deep in the countryside lie the remains of one of the grandest Roman dwellings in Britain.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

A Roman spa buried deep beneath the City of London.

The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.

Western Europe's only representation of a Roman goddess still in its original location sits in an unassuming park.

A little slice of Japan and its aesthetics in London's Holland Park.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

Created hundreds of years ago, the magical follies and landscapes at this park were almost lost to time before being restored.

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

This hidden green space is the city's second largest conservatory.

London's old-school healing garden.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

400-year-old garden, restored to beauty.

Rebuilt remains of a temple to Roman god Mithras.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The world's largest collection of witchcraft regalia.

The sign at the garden gate reads: "These Plants Can Kill."