A boardwalk winds through this sliver of coastal nature hidden within Sydney.

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

An indigenous ethnobotanist runs this brunch spot celebrating Australia’s native flavors.

It's said to be one of the most significant collections of contemporary Chinese art in the world.

People can't get enough of these adorable Japanese photobooths.

This secret Australian garden was built on love after a man planted a random bulb he found in the ocean.

Come for the flowers, stay for the bats!

One of Australia's largest secondhand bookstores.

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

This unique exhibit "Dialogue in the Dark" reverses roles as the visionless become guides and the sighted become ‘blind.’

A Nazi concentration camp and Anne Frank's place of death.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

This Rococo church is known as the most beautiful village church in the world, and does not disappoint.

The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."

Bursting forth from a historic German neighborhood, these day-glo palaces are now a bright fixture in the town.

Money made from smuggling sugar helped create this wondrous rock maze in honor of the Prussian Queen Louise.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

Puppet theater and museum holding a collection of more than 300.

A unique hanging cable-car navigates through Dresden, the oldest suspension railway in the world.

It's always summer at the beach inside this former airship hangar.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

A restaurant and observation deck built in a unique broadcasting antenna.

The prototype for all Nazi concentration camps.