This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

A little sculpture with a large wardrobe.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

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

A bridge that has seen many reiterations over its lifetime.

This interactive sculpture allows visitors to leave a message in case a friend passes by.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

The narrowest street in the world is in danger of closing up entirely.

An angular maze of concrete in Grand Rapids acts both as public art and as a staircase for fish traveling upstream.

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

There's more contention than one might expect from cherry pie pans.

Locals often dress this effigy of Traverse City's founder in festive outfits.

Easily overlooked in favor of the wineries that dot the region, this blast from the past is equally worth the visit.

A lonely stone-sided terminal stands next to a grass airstrip on Michigan's Leelanau Peninsula.

A charming remnant of 19th-century fishing towns sits on Michigan’s Leelanau Peninsula.

A preserved stump is all that remains of the once-mighty hardwood.

A crumbling mountain resort that looks like it was abandoned in an instant.

This tribute to a local man towers within a quaint lakeside park.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

This is the last hand-cranked chain ferry of its kind in operation in the United States.