Bohol's mysterious brown hills.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

The fighters and conspirators that won independence for Paraguay held secret meetings at this historic house.

This beautiful example of neoclassical architecture is one of Uruguay's most treasured cultural gems.

The remains of Uruguayan hero José Artigas lie beneath a monument in Montevideo’s main square.

The design of the Palacio Salvo has been described as "a lighthouse on top of a building."

This abandoned nitrate town was repurposed as a dictator's prison.

A sculpture of a giant hand reaches for the stars in the middle of the Atacama desert.

Pablo Neruda's custom-built lover's nest was made to remind him of the sea and named after his mistress' hair.

A museum founded to reflect on and remember the human rights abuses under Chilean dictator Augusto Pinochet.

A magnificent winding road through a steep valley, with deep natural caverns at the bottom

This landmark overlooking Ramsbottom pays homage to Sir Robert Peel, repealer of the Corn Laws.

This library dates back to the late 17th century and was one of the first public lending libraries in England.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

Once an opulent Art Nouveau hotspot, the Constanța Casino is one of Romania's most beautiful abandoned buildings.

Christ's blood preserved in a Belgian town.

A beer pipeline runs beneath Bruges.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

This statue pays tribute to the iconic musician in the place where he recorded his final studio album.

Medicinal spa created with the discharge from a geothermal energy plant.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.