A floating cat sanctuary on an Amsterdam canal.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

This groundbreaking 16th-century map is known as "America's birth certificate."

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

When the rain falls, this drain system turns into a musical instrument.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

The only microgravity tower in Europe can produce nine seconds of weightlessness.

Walk or bike along a narrow strip of Belgium sandwiched by German territory.

Its columns were all carved from the same white oak tree.

This engineering marvel is the longest bridge in Canada and one of the longest spans in the world.

Rusty red sands line the shores of this Canadian Province.

Go inside the house that inspired L. M. Montgomery to create one of literature's most beloved heroines.

These powerful, if squat, Canadian waterfalls flow in different directions depending on the time of day.

Iconic rock formations that allow for exploration during high or low tide.

The only town in the world with two exclamation points in its name.

An ever-changing gathering of crude wooden figures haunts the St. Lawrence River.

Small ship votives hang from the vaulted ceiling of this port-side church with a Latin inscription on the wall.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

A small Second Empire-style building is one of only seven remaining lighthouses on the Hudson River.

At this farm in upstate New York, the former president plotted his reelection campaign.

This giant monument of the RCA mascot is a beloved fixture in Albany, New York.

Two mermen, eternally spitting into each other's mouths.