A shrine built to combat the bad karma of a commercial venture.

Bombed and burned, this monument represents the often controversial ties between Vietnam and Cambodia.

Khmer Rouge's high security prison.

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.

One of the world's tallest flagpoles.

A mausoleum dedicated to a warrior felled by misplaced loyalty and tragic circumstances.

Built by the Portuguese colonists in the early 16th century, this fort is one of the oldest European structure in Asia.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

A licentious look into Singapore's past, full of disorderly bric-a-brac and disreputable characters.

A manifestation of modernist architectural ideas, this massive, multi-purpose building was one of the first of its kind in Southeast Asia.

This fountain was once heralded as the largest in the world.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

The most playful of the life-sized statues that make up Singapore's "People of the River."

The busy transport hub is home to the tallest airport slide in the world.

Singapore's landscaping project is home to 18 incredible Supertrees.

A musical instrument played by the sea.

With over 10,000 lights, this engineering marvel lights up the city after dark.

This extraordinary, multi-pillared monument depicts the fascinating history of Georgia.

The largest Roman amphitheater in the Balkans once held over 20,000 people, but managed to lay hidden for hundreds of years.

A memorial museum to the political prisoners who were held at Sighet Prison, once one of the most feared places in Romania.

A medieval church built up to defend its village.

A celebration of all things tacky, garish, and bizarrely creative in the Romanian capital.

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