The hottest, driest, and most scenic desert on Earth.

A sophisticated astronomical tower built by one of the greatest Persian scholars of the Islamic Golden Age.

The vertical-axis windmills of ancient Persia have been grinding flour for 1,000 years and counting.

Iran's colorful terraces are a rare geological masterpiece.

Bali's remote "gateway to heaven" is one of the most sacred places on the island.

A small statue of child Jesus given by Magellan in 1521

In her ancestral home, one chef preserves ancient Filipino recipes and serves up traditional, home-cooked food to history-loving foodies.

It is believed that the historic tower is sinking at a rate of an inch a year, though no one is completely sure why.

A 50-foot-tall statue of Jesus where a stairway transports the faithful into his body.

This eerie abandoned building with a dark history is said to be one of the most haunted places in the Philippines.

Smoked mummies housed in mountainside caves.

A once great mansion stands in stately ruin.

Bohol's mysterious brown hills.

Hundreds of wooden coffins dangle from cliffs and caves in the Philippines.

An island in the middle of a lake, in the middle of a volcano, in the middle of a bigger lake, in the middle of a bigger island, in an archipelago, in the Pacific Ocean.

A magically clear, blue river that seems to spring from nowhere.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

A grotto-like lodge decorated with gilded mosaics, rocks and a noisy waterfall was the setting for the most sumptuous pleasure house of 1900s Europe.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

Indents in the pavement are all that remain from a grisly death machine in Paris.

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