This historic observatory contains the world's oldest refracting lens telescope.

Come for the flowers, stay for the bats!

Though considered an eyesore by some, this boxy Brutalist high-rise plays a significant role in Sydney's past.

This street has over a half-dozen names, all at once.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

This nugget of paradise earned its name for obvious reasons.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

Pettah's beautiful floating market was once a stinky canal in a sketchy industrial area.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

This French colonial post office is arguably the grandest in all of Southeast Asia.

This amazing trail among the many waterfalls around Ingleton has been enchanting visitors since 1885.

One of the biggest markets in Asia, under one of the continent's largest domes.

Witnesses claim the Virgin Mary statue outside the church once mysteriously shed a single tear.

This space rocket-like Buddhist stupa sits atop two giant arches and can be seen from out at sea.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.

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

This Welsh hotel is the spiritual home of the British 1953 Everest expedition, the first successful ascent of Mount Everest.

A museum in Mississippi celebrates the history of Coca-Cola and the man who brought it to the masses.

This striking observation tower shaped like a spinnaker sail is the newest icon in historic Portsmouth.

Marvel of green building techniques that sings with the wind.

Bombed and burned, this monument represents the often controversial ties between Vietnam and Cambodia.

Originally a meeting place for foreign correspondents and war reporters, the FCC remains an atmospheric spot for sunset drinks in Phnom Penh.

A historical convent known for taking in bad luck babies left on its doorstep is now an upscale shopping center.