At more than 5,000 years old, these structures are among the oldest free-standing stone buildings in the world.

This 50-foot-deep sinkhole created in the 14th century is home to rare plants and fungi.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

This Stone Age solar temple aligns with the sun on each equinox and solstice.

The highest peak in all of England is plagued by dangerously fickle climate shifts.

The rust covering this old mine's abandoned buildings matches the red pigment it once produced.

The tallest residential building in Africa is an unsettling Brutalist monolith.

A supply store for traditional healers, this shop sells the hair of a dog--and its skin, skeleton, and reproductive organs, too.

Two giant painted cooling towers make for one of the world’s most epic bungee jumps.

Nelson Mandela lived here with his family from 1946 until his arrest in 1962.

The cedar tree in Highgate Cemetery earned its title by accident.

The sanctuary seems to either float atop the water or sink into the dirt, depending on the water level.

Since 1887, this old-school shop has stacked its shelves with extraordinary coffees and teas.

Manchester salvaged this sculpture of the adopted Mancunian when it was no longer wanted in Ukraine.

Contrary to its heavenly name, this tranquil oasis has a dark and tragic history buried with it (quite literally).

The city of Manchester quietly unveiled this tribute to a 19th-century massacre.

This tri-part waterfall is a little bit of fairytale beauty in the heart of Luxembourg's Little Switzerland.

Known as the Sistine Chapel of Egypt, this tomb houses some of the most well-preserved paintings in Egypt.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

An endless sea of white conical domes.

A much-loved local landmark pays tribute to the shipbuilding past of this area.

Abstract dinosaur models in London.

A sculpture of a famous ape who was once a beloved household name in London.

105-foot wide giant metallic flower blooms anew every day in the heart of Buenos Aires.