Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

A rare surviving Victorian greenhouse designed specifically to house giant water lilies.

Stockholm's deepest subway station is also a stunning ecological wonder.

Sweden's "good old days" painstakingly re-created in a model village.

Stockholm's narrowest alley is barely over two feet wide.

Stockholm's tiniest statue is of a small boy looking at the Moon.

A Stockholm metro station is home to an escalator that is not only the longest in Sweden, but among the longest in the world.

The Swedish flag over this small naval fort signals that the nation is at peace.

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

A temporary art piece to celebrate LGBTQ Pride is now a permanent part of Stockholm's traffic landscape.

A concrete mushroom that divided Stockholm residents for nearly a century.

Come for the flowers, stay for the bats!

The statue honors an adventurous seafaring cat.

This letter written by Queen Elizabeth II in 1986 won't be opened until 2085.

This full-sized orange tree lives suspended in mid-air above the streets of Jaffa.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

The platform atop this verdant volcano was built with the help of a royal elephant.

The ruins of Vancouver's abandoned heritage railway.

Europe's official "zero-level," the equator of elevation.

The facade of this bank has changed little over the centuries, including its unique welcome sign.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

The last of Amsterdam's original sea level markers remaining in place.

A unique work of automotive art calls this shopping center home.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.