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

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

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

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

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

Home to the most complete dodo remains known - one head, and one foot.

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

Used as an example in one of the first dictionary entries for "museum" in 1706.

One of Europe's oldest libraries.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.

The Netherlands' first car tunnel has an unusually rectangular shape.

Now a museum, this building was once a 14th-century monastery and the place where the founder of the Dutch nation lived and was assassinated.

Built by crowdsourcing, this wooden foot bridge saved a part of Rotterdam that was languishing in wait of city funding.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

Colorful and chaotic stacked hotel in North Holland.

Amsterdam's former hotspot for public executions and dissections.

Hop aboard a charming bog train to explore this rare open-air museum of peat.

Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.

The 20-mile causeway that separates the Netherlands from the sea.

The largest coin pyramid in the world is a carefully balanced stack of over 1,000,000 pieces.

Ever-growing collection of devils in art.