An international border crossing near the famous Iguazú Falls where bargain hunters and curious tourists stream between Brazil and Paraguay.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

A 125-meter long "tribute to the Brazilian people."

Model Trains and Much More in Hamburg.

A cheeky architectural easter egg.

A peculiar clock commemorates a historic victory won by ringing the noonday bell an hour early.

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”

This hanging crocodile is thought to be the "dragon" that once plagued a Czech city.

Go surfing on this urban wave, "hacked" by local surfers.

World's largest barrel containing an inn.

This natural "sea of stones" was once used by the Romans as a quarry.

It has an American Dream Car exhibit, Europe's largest Formula One collection, and many, many mannequins.

This 18th-century folly is one of Europe's rare "garden mosques."

In this German city center, the streets have no names.

A man-made slag heap that you can "ski" down, and is home to the world sandboarding championships.

The final resting place of one of Germany's most accomplished Renaissance men.

This historic toy museum brings a little whimsy to a city not usually remembered for such things.

During World War II, the Nazis repurposed this beer cellar to store stolen artwork.

A place steeped in history that may be best known as the set of a 1960 film.

The blowhole bursts spectacularly right next to the buildings in a medieval seaside town.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

These fantastically named natural pools look like something out of a Scottish myth.

This house's itty bitty size means no humans allowed.