Largest Roman Catholic church in North America.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

This network of conjoined cellars was riddled with traps and supposedly allowed the townspeople to pretend their homes were deserted.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

Built on a medieval synagogue, this church has a burial crypt, tunnel system, and Jewish ritual bath hiding deep underneath.

This recently restored crypt was once plagued by liquefying coffins and exploding caskets.

This bridge's unique architecture honors nautical heritage and encourages self-awareness.

Did he come up with a theory of cosmic-ray showers while sitting in this bath?

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

What was once thought to be a wellspring of unicorn bones is actually just a prehistoric burial site.

This bakery and museum offers tours of the tastes and mythology of Aachen's signature spice biscuit—just don't ask for the recipe.

This "floating railway" is one of the world's oldest monorail systems.

An electrical pylon under whose legs a normal gauge train can run.

Be it nature, art, or abandoned military architecture this eclectic German "museum" has you covered.

Thousands of flowers create enchanting pink tunnels over the city streets.

This mysterious pig iron pillar does not rust, despite being weathered by the elements for centuries.

The patron saint of spinsters grasps a container of dried blood.

This airport currywurst stand is made out of retro airplane parts.

The telescope that discovered Neptune.

The scars of World War II are preserved on its walls.

Housed in an old church, this hunting museum holds a collection of mythical bird-rabbit creatures.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

This kaleidoscopic mural shows Bob Dylan throughout his transition from young troubadour to Nobel laureate.