This rare wildlife haven in Singapore feels like you're in the tropical rainforest.

A rare specimen of an iconic extinct animal in downtown Sydney.

This work of art was designed to represent the Tarpeian Way Quarry that once dominated the area.

The bones of this aquatic dinosaur turned to opal over the centuries and the beast's remains were almost sold as jewelry.

A self-funded cemetery with a long list of inhabitants.

The statue honors an adventurous seafaring cat.

A collaboration of art and ornithology mourns the calls of Sydney's lost birds.

A museum of co-operativism housed in the birthplace of the modern movement.

Be on the lookout for the symbolic insect all over the city.

This automated sculpture of two men peeing will spell out text messages with their micturition.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

Europe's official "zero-level," the equator of elevation.

This unusual elevator doesn’t stop or slow down.

Amsterdam's former hotspot for public executions and dissections.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

Moscow's imposing monument to the Space Age.

The tallest hotel in Europe.

Palace where the nearly un-killable Rasputin was murdered.

China's very own Atlantis is an ornate dynastic city resting at the bottom of a lake.

Its humdrum facade only adds to its electrifying appeal: a rooftop with panoramic views of a shapeshifting metropolis.

Home to more than 13,000 pieces of war memorabilia and military equipment.

Tracking the 1,500-year history of Korea's star cabbage.

Next to the Malaysian Prime Minister’s office stands this rose-colored mosque.