The first Catholic church in Singapore is a Neo-Gothic colossus with a rich architectural history.

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

This dangerous-looking suspension bridge may have been too unstable to remain open.

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

Flaming barrels of tar race through these village streets on Bonfire Night, a tradition that dates back centuries.

A chilling monument to Korean patriots who resisted the Japanese occupation.

A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

An ancient necropolis of magnificent tombs.

This mysterious but iconic tapered tower appears in many Azeri fairytales and legends.

Centuries before the modern seismograph, Armenian monks measured quakes with this tilting pillar.

The world's longest nonstop reversible cable car soars through spectacular scenery to the medieval Tatev Monastery.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

This 23-foot-tall bear stands amid the hustle and bustle of Hamad International Airport.

Kuwait City's uniquely designed water towers look straight out of a retro sci-fi cityscape.

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

In Zanzibar, a historic 19th-century palace is a reminder of the world's shortest war.

Sitting atop a rock on Michamvi Pingwe beach, this restaurant becomes its own island at high tide.

After sunset the heart of Zanzibar's historic Stone Town neighborhood transforms into a culinary playground.

The medieval woodcut-style artwork chronicles life in medieval London.

This East End pub gained notoriety as the site where gangster Ronnie Kray publicly shot a rival.

This hospital helped pave the way for treatment that drove down child-mortality rates in 19th and 20th centuries.

An architectural oddity hides in plain sight on this iconic London bridge.

A celebrated bandstand at the center of what was once the worst slum in London.

This innovative steam machine was no doubt the most famous of the pioneer locomotives.