The roof of one of the world’s largest spice markets provides a grand view over the neighborhood's glorious bustle.

This beautiful 16th-century necropolis marks an astonishing feat in heritage conservation.

Time has stopped at the house where Gandhi died.

Nestled among the artifacts of the National Crafts Museum, this hidden gem offers hard-to-find regional foods from all over India.

A blooming house of worship for the masses.

Despite producing just a handful of movies, a brave and lyrical filmmaker has an entire museum dedicated to him.

Men and special assistants stand by the road to sell the day's catch in this lakeside village.

She asked for a potato cellar and over the next 23 years he gave her a network of holy caves.

Right up until the 20th century this network of man-made caves was the biggest village in Eastern Armenia.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

A geological oddity topped with a 2,000-year-old pagan temple.

Hundreds of intricately carved Armenian stone crosses can be found within this huge cemetery.

Destruction from Armenia's 1988 earthquake inspired an artist's sculptures of scrap metal.

One man’s collection of photography books has transformed into a charming exhibition space.

This little medieval church hidden in the center of Yerevan was lost and rediscovered—twice.

Above an abandoned Underground station, this charming bookstore is home to strange antiquities and literary works.

A network of concealed passageways lies within a busy London Underground station.

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

The largest of London's subterranean rivers and once a mad, bad center of London life.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

A mysterious artist-run cabinet of curiosities and library.

A cluttered and astounding collection of antiquities and curiosities.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.