A remarkable feat of Victorian engineering across the Firth of Forth.

This ancient stone bridge dates back to the early Middle Ages.

This colossal war machine is now a living museum dedicated to underwater warfare.

This road earned its macabre nickname after hundreds of Iraqi troops died along it in 1991.

The world's "leaniest" tower encourages you to test the gravity of its situation.

The haunting complex honors the millions of Ukrainians who died in the forced famine under Soviet rule.

Underneath this Byzantinian church lies a necropolis filled with ancient tombs and the ruins of previous churches.

This once prosperous community was home to European settlers and the Ojibwe.

This massive complex is made up of hundreds of smaller temples that date back to the ninth century.

This former World War II torpedo testing location is now an important nesting site for migratory birds.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

This sculpture of Edward of Woodstock is surrounded by eight Victorian lamp bearers.

The name of this suspended sculpture is Latin for "high horse," which is exactly what it is.

This fort dates back to 1588 and was colonized by the Portuguese, Dutch, and English and sits prominently on the Indian Ocean where azure water lap the coast.

Believed to be the longest railway bench in the world.

The largest caravanserai in Cyprus also includes amazing examples of Ottoman architecture.

One of Vietnam's most iconic landmarks was built by Japanese traders and is now in danger of sinking.

The oldest known European structures in Australia are the remnants of a story filled with mutiny, murder, jealousy and greed.

A massive concentration of algae is responsible for this lake's pink hue.

One of the few places in the world home to living stromatolites.

This former Union fort commands a fine view of downtown Cape Girardeau and the Mississippi River.

The house in the middle of the motorway.

One of the tallest lighthouses in the world also serves as a monument to the fallen of World War I.

This historic floating crane became an unlikely symbol of the port of Trieste.