Iron Butterfly's personal collection of footwear.

The largest United States military cemetery overseas.

A church made of steel.

A well kept and well documented look at the Bruneian Sultan's life and successes.

Ferdinand Magellan dubbed the world's largest water village the "Venice of the East."

A symbol of Islam in oil-rich Brunei.

A shockingly detailed small scale recreation of the temples of Abu Simbel.

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

Home to some of the oldest hominid fossils ever found.

Caves that can't seem to quit producing the remains of prehistoric humans.

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.

According to legend, this ancient column contains healing properties.

The home of Greece’s national poet sits crumbling in the middle of a popular tourist district.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

The ruined doorway is a portal to the building's turbulent and torturous past.

The only surviving choragic monument is a trophy awarded in 334 BC for the winning dramatic chorus.

An ancient octagonal weather station named for the eight Greek gods of wind.

This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

Legend says this sacred tree was a gift from goddess Athena.

These caves secretly held national treasures during World War II.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.