Giant statue of a disembodied head.

This abandoned concrete building was once hailed as an innovative architectural marvel, originally built to store sugar.

For two decades in the 13th century, the papacy operated from this palace in central Italy, which served as the site of the first—and longest—papal election conclave in history.

This Roman theater was crafted into the local tuff rock and was rediscovered during the 19th-century.

A series of stained glass artworks that depict images of the hit TV show.

These engineering masterpieces are a dominant feature of the Belfast skyline.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

This likeness of the famous revolutionary is entirely made of recycled scraps of metal.

The Uros people live on floating reed islands in lake Titicaca.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

The little bear in the "funny kind of hat" has made his way from London back to Peru.

Visiting dignitaries and Hollywood stars once stayed at this 1920s hotel, alongside ghosts that are said to haunt its corridors.

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

This group of small islands on Lake Nicaragua formed after an eruption of the Mombacho volcano.

This wildlife refuge is home to more than 200 species of birds, as well as monkeys, lizards, and other wildlife.

It's not quite as old as its Roman appearance suggests, but this piece of infrastructure served Guatemala City for centuries.

Believe it or not, the now-ubiquitous California avocado originated in Guatemala.

The ruins of a megalithic monument sit right in the garden of a luxurious Maltese resort.

A Guinness World Record-holding social enterprise whose shows don't shy away from heavy themes.