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

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

A little sculpture with a large wardrobe.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

A natural arch offers panoramic views of Yangshuo's karst hills.

The field of tiny caves that mark this Chinese cliffside are each their own historic Buddhist temple.

Although resembling a grand Buddhist temple, this structure is actually the largest mosque in China.

An ancient fortification lives on in this Chinese city.

The knock-off oil painting capital of the world.

130 replicas of world wonders squeezed into just 118 acres of space.

This ancient Egyptian obelisk still bears the wounds of World War I.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

The first geometric self-supporting spiral stairs in Britain are a truly beautiful sight.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Hear the quietest sound from across the dome.

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

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

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Historic medieval fortified city in southwest France.

Red, white, and blue painted steps along with a Union Jack celebrate the outcome of Gibraltar's 1967 referendum.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.