A sixth-century Byzantine cistern hidden below a modern carpet store.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

These ornate arches show how the course of the River Thames has changed.

This historic timepiece was a popular meeting place for romantic rendezvous in the 1960s.

At 8,000 feet, the world's highest tea estate draws visitors for both its products and its panoramic views.

An 18th-century battery complete with original kitchen and garrison.

This church was transported brick by brick from the ruins of a 16th-century city into Panama City's current historic district.

It took 160 years to complete the most ornate church in Ecuador.

A quiet alpine lake where hikers pass alpacas and an old brewery.

This foreboding building was the headquarters of the terrifying Spanish Inquisition in Mexico.

A crumbling cathedral condemned by an earthquake.

Home to 23 voluptuous and instantly lovable sculptures by one of Latin America's most celebrated artists.

Known to backpackers as the "Steps of Doom," this walkway carved into the side of a seaside cliff leads to the Roman Tombs.

This 14th-century Sri Lankan temple is a mixture of Sinhalese and Dravidian architecture.

Monkeys lounge around at this 13th century temple.

A silly medieval mural preserved on the side of a Viennese house.

A monument dedicated to a lone, brave invader.

Despite a recent paint job, the factory still sits empty.

A whimsical bridge adorned with decorative dragons.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

This abandoned Slovenian military barracks has become a punky-political art squat.

5,000 skulls in memorial to those killed by the Khmer Rouge.

The remains of 40,000 humans, meticulously stacked in a tiny churchyard shed.