A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

Hindu temple of the dead home to hundreds of long-tailed macaques.

A controversial memorial at the place where Captain Cook met his violent end.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

Come for the flowers, stay for the bats!

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

The oldest museum in Russia is home to a fascinating collection of nearly two million anthropological artifacts and anatomical curiosities.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

Pilgrimage site for star-crossed lovers.

The fairy tale castle of the "fairy-tale king."

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

An underground city of salt.

Macabre astrological automaton clock dating to the late 1400s.

A church of bones, decorated with 40,000 human skeletons.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

A sculpture serving as an homage to Pope John Paul II.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Historic medieval fortified city in southwest France.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Most prolific publishing house in the 1600s open to the public.

A little sculpture with a large wardrobe.

This one-time health resort was used by aristocrats around the world.

This massive subterranean fissure is known as the "underground Grand Canyon."