Overlooking beautiful Rhossili Bay are the remnants of a former World War II radar station.

Built over an abandoned train yard, this hidden gem is full of winding paths and offers gorgeous views of Sydney Harbour.

Converted into a time capsule-like museum, these terrace houses depict the living conditions of working class tenants from various eras.

An ancient capital city that dates back 3,000 years and harbors many surprises.

The oldest skyscraper of Europe now stands dwarfed by the surrounding structures.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

This unique footbridge stands out among the surrounding buildings, and is a popular filming and photography spot.

This prison on the Maltese island of Gozo is almost 500 years old, and they have the graffiti to prove it.

This figure was carved in the likeness of a voyeur, so that every time he spied across the street, he would find only himself staring back.

There are over 12,000 Buddha statues at this temple complex that has been mistakenly labeled a monastery.

The tunnels in the ruins of this failed British World War II defensive line bear the names of famous London streets.

A short walk up a small hill provides spectacular sunset and nighttime views of Kowloon

At Bank station, the tunneling shield that built the original Waterloo & City line tunnel is hiding in plain sight

Near where the ill-fated Terra Nova expedition launched, there is a monument to 'Scott of the Antarctic'

Originally located in the business district, this former barracks building was dismantled and rebuilt on Hong Kong Island's south side

Looking like something out of a fairytale, this tiny house was built over a stream to avoid paying land taxes

This atmospheric cavern on the hillside above picturesque Rydal Water is actually an old slate quarry

Now dwarfed by high rises on adjacent reclaimed land, this fort once defended the coastline against pirates

A British Army regiment's coat of arms is imprinted on a ridge overlooking their former barracks

This vital ecological site provides tranquility and greenery, while being right on the edge of the city

This century old compound is now a thematic exhibition space focused on Chinese arts and culture

A statue dedicated to football's first African superstar and Portugal's greatest ever player

Hidden on top of a ferry terminal is a nifty statue of three dolphins, and one of Hong Kong's best sunset viewpoints.

Built in the aftermath of a devastating earthquake, this cathedral is one of the finest examples of Sicilian Baroque architecture.