Head underground and take a tour of the city's working sewer system, and see the underground river Senne, which defined Brussels for centuries before being covered in the 19th century.

This Greek temple, open only an hour a day, was the site of a war of tastes between an architect and an artist.

Brussels' favorite peeing boy has a sister.

A 1:20 scale piece of the Netherlands commissioned by a queen lets visitors take a stroll as giants.

A Dutch clog company in the town of Zaandam loves the wooden shoes so much it made a museum for them.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.