The remains of Crystal Palace Great Exhibition of 1851.

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

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

Hear the quietest sound from across the dome.

A tongue-in-cheek arcade where the games are based on everyday life.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Banksy gives themself artistic license with this piece of London street art.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

A kaleidoscopic warehouse-maze of handmade neon signs.

A small alleyway lined with locally drawn scenes of nostalgic anime and cartoon characters.

Waste incinerator with a restaurant on its chimney.

A secret passageway from World War II is now a quirky pedestrian shortcut.

Memorial to the father of the Republic of China.

Walled family complexes in Southern China.

Only through deep darkness and tragedy did this elaborate royal palace become a sacred temple.

Taiwan's last Chinese character letterpress preserves the dying art of Chinese character mold making.

This attraction is part anthropological journey and part amusement park.

Visit this church that's shaped like a giant glass pump either to cater to women or to reference a tragic local tale. Or both.

Grandpa Rainbow felt the neighborhood needed some color, so he picked up a paintbrush and went to work.

Once a prosperous mining village, this tiny Taiwanese town is now overrun with cute cats.

The world's spiciest ice cream comes from Glasgow.

A small gallery and shop dedicated to an ancient style of hand-printed textile.

Private collection of art inspired by cabinets of curiosity.