Rotting dome home spotted near Chapel Hill, North Carolina.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

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

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

South Korea's largely symbolic, barely used gateway to the North.

Secret North Korean passage discovered below the world's most dangerous border.

The best place for scenic views of the DMZ and North Korea.

The capital of Cambodia is named after the hill on which this ancient temple complex stands.

One of the biggest markets in Asia, under one of the continent's largest domes.

A battle between nature and architecture in the Cambodian jungle.

A serene space tucked amid the skyscrapers of Hong Kong's bustling financial district.

Two cannon-like cranes were installed on top of the bank building to fend off bad feng shui.

Remnants of the most densely packed city in world history, that thrived on anarchy for 30 years.

Taoism, Buddhist and Confucianism are all represented in this temple that claims to answer anyone's wishes.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

A goddess-topped water fountain in Chicago was created thanks to the dreams of a thirsty newsboy.

An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

This historic hotel invented the chocolate brownie.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.