Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

A layered tribute to the work of mosaicist Isaiah Zagar.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

World's first "penitentiary," meant to be humane, drove men insane.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

A beer pipeline runs beneath Bruges.

This abandoned Belgian fortress is purposefully being left to nature.

This giant urban staircase was built to keep the city's brave fighting men from getting waylaid in the red light district.

A once-magnificent collegiate church is falling into ruin.

A whimsical bridge uses saxophones to pay tribute to two great men and the European Union.

The world's tallest boat lift stands as a massive piece of industrial tourism.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

One of the deepest indoor swimming pools in the world.

Climb inside an iron crystal magnified 165 billion times its normal size.

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

Meet the bronze beloved pet to a family of famous peeing statues.

Cozy basement bar sports an inventory of over 2,000 beers.

Brussels' favorite peeing boy has a sister.

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

A little sculpture with a large wardrobe.