A 16th-century horror show built in a lovely Italian garden.

An archaeological treasure trove towers over the valley of Chiavenna.

The oldest stone house in Paris was built by its most famous alchemist.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The alpine falls where Sherlock Holmes apparently met his demise can actually be visited.

Ruins of a German Castle on top of a towering stone pillar.

The yawning maw of this pagan visage is said to bite off the hands of liars.

The house where Charles Darwin's grandfather formed many of his influential ideas and inventions.

Nearly 2 billion seeds from 38,000 species are stored and processed at this visitable facility in a quiet corner of England.

These mysterious mazes carved on the rock may be up to 4,000 years old.

The fantastic charm of England's oldest botanical garden has made it a place of writerly inspiration for centuries.

The gravestone of a delicate singer-songwriter bears a fittingly introspective epitaph.

England's "pier at the end of the universe" unites astronomy and contemporary architecture.

This enchanting Victorian estate was home to the world's first hydroelectric power generator.

This fantastical and eclectic English garden takes its inspiration from Egypt, China, the occult and more.

Isaac Newton's former home, where the famous apple tree still stands.

Grab a cuppa at England's first and only domestic tea plantation.

Giant naked man on a hillside.

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

One of the largest sculpture collections in the U.K. features history's greats, from Bob Dylan to Galileo, in bronze.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

London's old-school healing garden.

The heads of two giant mythological water horses honor Scotland's horselord past.

A metal tree emits eerie, melodic notes on top of Lancashire's Crown Point.