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.

A hardware store Buddha statue installed to deter vandalism wound up attracting Vietnamese immigrants who came to pray.

Odd stone and concrete monuments in the "Poet of the Sierras" eclectic folly garden.

This mysterious series of teeny guerrilla installations sheds a whimsical light on street art in Oakland.

Oakland's beautiful monumental cemetery.

Constructed from recycled wrought iron railroad tracks, it's been described as the most beautiful seaside pier in England.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

This architectural stunner is one of the few surviving Egyptian Revival theaters in the U.S.

The Tudor-style cottage in the middle of the square is not quite what it seems.

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

Abstract dinosaur models in London.