This unreal Portuguese palace looks as though it's made from a pile of different castles.

The verdant mossy ruins of a Franciscan monastery lie in the remote Sintra hills awaiting exploration.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

In Portugal, a secluded stretch of untouched natural beauty hides at the bottom of a steep hill.

This handsomely carved wooden church is more than 800 years old.

This abandoned five-star hotel is now a five-star urban exploration destination.

An enormous, inside-out glass globe built in 1935.

The world's largest piece of copyrighted artwork.

A Singapore shrine to an unnamed German girl who has become a local deity.

An artist crafted this lonely left hand as an imagined relic from Singapore's history.

The largest pool at its elevation sits on top of one of the most expensive resorts in the world.

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

A startling, centuries-old subterranean marvel hides in plain sight.

The mysterious empty cupola behind the monumental arch points to an ancient prophecy of Delhi.

India's first open-air public art district sits in the heart of the country's capital.

A sacred mountaintop temple offers a fine cup of tea to visitors who can survive the journey.

An ancient fortification lives on in this Chinese city.

The legendary birthplace of the Japanese maneki-neko is dotted with hundreds of lucky beckoning cats.

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

A corkscrew-shaped barn in Ireland.

This neon landmark has been posing this deadpan question to follicly-challenged Dubliners for over 50 years.

A nostalgic restaurant evokes life in Taiwan from the 1940s to the 1970s.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The headquarters of the semiconductor giant has a 10,000-square-foot museum.