Gutted during the Liverpool Blitz, this architectural husk has been left destroyed in honor of the dead.

Murals of the wild parties once held on the frozen River Thames.

The television series' iconic giant foot was borrowed from this classical painting.

A sculpture outside London's oldest cathedral honors the Mohegan chief who died while petitioning the king.

Black cat statues guard this temple-like Egyptian revival factory.

You'd never know the houses at 23-24 Leinster Gardens were fakes—until you see the train tracks on the other side.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

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

A familiar otherworldly creature guards this 12th-century Scottish abbey.

Oldest building in California still in use.

The Giant Lemon of Lemon Grove.

A city block packed with whimsical sculptures that seem to be plucked from a tiled fantasy world.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

Museum dedicated to the terror regimes of Hungary.

Once the home of a hermetic monk, this cave now houses a small church.

A unique tribute to the millions of animals who served and died for the British military.

The oldest house in Glasgow is now a museum dedicated to the city's medieval history.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

The remains of Crystal Palace Great Exhibition of 1851.

Catacombs turned marketplace.

This pump on the bad side of Victorian London betrayed a horrifying revelation about the water supply.

The signs of a long buried road can still be found hidden beneath a London sewer grate.