The largest mosque in Cambodia was built to unite the country's Muslim community but soon sparked division and controversy instead.

A neglected bell tower in modern Colombo is a symbol of the city's colonial past.

This small bridge serves as a symbol of South America's independence.

Pettah's beautiful floating market was once a stinky canal in a sketchy industrial area.

In the heart of Medellín, an artsy urban complex sets the stage for demonstrations and protests.

This tiny shop has been serving traditional tamales for more than 200 years.

The former global standard for the exact mass of one kilogram sits under lock and key outside Paris.

Given just one more year to live, Conrad Schuck built his dream house in Bartow, Florida.

Portugal's National Pantheon has a history of curses, collapses and financial problems.

This Norwegian satellite station provides ground services to more satellites than any other facility in the world.

Edison's cast-in-place concrete houses were a failure, but way ahead of their time.

This slowly crumbling mansion was home to one of East Africa's richest and most powerful slave traders.

Stockholm's deepest subway station is also a stunning ecological wonder.

The roof of this ancient mausoleum is made from a single Istrian stone weighing a massive 230 tons.

This sacred fig tree with a link to the Buddha is one of the oldest human-planted trees in the world.

The only rotating bar in New Orleans has been slowly spinning since 1949.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

Pilgrims each carried a brick to the top of Mount Monserrate to help build this historic sanctuary in Colombia.

A swath of France so devastated by war it is still forbidden to go there.

A monument to the two U.S. officers killed by North Korean troops while trying to trim a poplar tree.