A garden in Lisbon filled with giant porcelain creatures.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

The world's oldest bookshop still in operation.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This legendary dessert was served to Nobel laureates for decades.

The center of Stockholm can be found along this quiet street.

One of the world's oldest continuously operating meteorological stations sits on a hill in Stockholm.

A traveling Bronze Age sacrificial stone that was used to honor elves, fairies, and other woodland spirits.

A prehistoric geological oddity tucked behind Stockholm's natural history museum.

Part of an abandoned19th-century fortress hides in plain sight inside a modern office building.

This small statue hints at the incorrect origins of the lush landscape park surrounding it.

The palace for King Gustav III was never completed, but the foundation remains tucked away in this city park.

A 130-year-old urinal is the oldest of Stockholm and perhaps all of Sweden.

This railroad track was so secretive that it was omitted from all maps.

Tucked away in a downtown Stockholm park are the remains of a World War II defense position.

Hidden in plain sight, Sweden's official ordnance datum is now abandoned.

Inside this church, a monument honors the first burial site of the famed philosopher.

An ancient tree that was once the favorite of a young Swedish royal.

A wooden street sign is the last remnant of this 400-year-old alleyway.

Finally reunited, the three effigies now stand in a museum courtyard.

Enormous ants wielding giant pine needles guard a Stockholm real estate company's office.

Sound travels strangely in this underground whispering gallery.