A Provincetown shop that sells exactly one thing — a pink cupcake — and whose owner fought the town for the right to keep selling it.

Chase waterfalls, hiking trails and more.

Hamburgers are intensely proud of their tunnel beneath the river.

Elevated brass pavilions form a kaleidoscope of fragmented views of the surrounding historic cityscape.

Hidden in plain sight on a gable between two towers on the roof of shipping firm F. Laeisz' headquarter in Hamburg sits an unexpected bronze sculpture.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

Model Trains and Much More in Hamburg.

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

One of the earliest subway stations in Stockholm, which still looks like the 1950s.

It houses the remains of a 17th-century version of the Titanic.

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

This statue and park honor the Swedish chemist Jacob Berzelius, one of the founders of modern chemistry.

A heated statue pays tribute to one of Sweden's great actresses.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

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

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

This small museum nestled inside a souvenir shop is dedicated to Sweden's most well-known toy.

One of the world's first dedicated bank buildings in the world is now the oldest one.

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

An ancient Viking runestone hidden in plain view in Stockholm's old town.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

This contemplative sculpture made out of old machine parts is meant to be the first in a series of sculptures around the world.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.