The celebrated eyesore created by starry-eyed sweethearts.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

The world's largest bicycle shelter can hold more than 12,500 two-wheelers.

Today, Kent's medieval monarchs hold court on a busy pedestrian thoroughfare—or at least their statues do.

A defensive structure built during the Hundred Years War has remained useful in one way or another for nearly 700 years.

This strangely dressed taxidermy creature has a heartbreaking story.

This skewed English house has looked like it's going to fall over for centuries.

One of England's most famous churches hides a pair of little known architectural treasures.

Inspired by Thomas Stothard's painting of the "Journey to Canterbury," albeit with Canterbury natives.

A wonderfully eccentric Victorian-era museum and library.

The maze-like transportation hub contains abandoned areas, derelict stores, and a resident bat colony.

The only quarter of the Old City not dedicated to a major world religion.

This historic rec center in the heart of Israel is a bastion of peace and togetherness.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

An abandoned 1970s theme park that has been turned into a space for waterfront walking.

The building that once housed the dictator's secret police is now a museum that documents the history of an oppressive regime and those who fought against it.

You have to know where to look in this rather ordinary-looking square to find hints of its past as a dissidents' cemetery.

A mysterious architectural gem in one of the most elegant areas of Buenos Aires.

Come for the flowers, stay for the bats!

This was once the center of the Birdman cult, and is now a World Heritage Site.

A volcanic crater that visitors can look inside.

The world's most remote airport.

The largest stone moai on Rapa Nui.

This large round boulder is said to emit spiritual power, but it may just be magnets.