One of the largest amphitheaters in Europe is a former Nazi gathering place that still stands today.

A statue honors the children who fought Nazis in Poland.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

This natural wonder is disappearing at an alarming rate.

The silly symbol for an underground protest group is now scattered around the city.

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.

Ruins of a German Castle on top of a towering stone pillar.

Steadily reminding Czechia of its past.

Countless grotesque faces stare out from this eerie Prague art wall.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

Macabre astrological automaton clock dating to the late 1400s.

Poland's oldest salt mine has nearly everything one needs to live underground forever.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

This man-made mound monument was built out of soil from all across the Polish empire.

An inspired museum dedicated to the patron saint of enslaved people, inside the cloisters where he lived and died.

A surviving remnant of the thick ice mass that once mantled most of Western Canada's mountains.

Fossils, railroads, and waterfalls!

Soaring over the Niagara Whirlpool since 1916.

One of the largest underground systems runs under Canada's largest urban center.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.