The seat of Buffalo government is a gorgeous Art Deco palace.

A 19th-century architectural wonder designed by the "father of the skyscraper."

This Art Deco fortress in upstate New York gives Manhattan's vaunted examples of the style a run for their money.

These ancient sacred grounds granted amnesty to those who managed to reach them.

This legendary urban waterfall creates a dazzling display of rainbows.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

Images chiseled into the basalt here date back an estimated 300 years.

A train car sitting on a rooftop makes an unlikely and picturesque setting for dinner.

Hidden behind a gate in Greenwich Village is a little farmhouse that once served as the writing studio of a bestselling author.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

During World War II, blimps were a key part of the United States' defense against German U-boats—this building could house a dozen of the armed airships.

This is one really big nut.

A highland eco-park celebrates more than a thousand varieties of tuber.

A beautifully well-preserved ancient Roman villa.

This seaside Italian village doesn't just look Escher-esque, it actually inspired the mind-bending artist.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

The patron of this extravagant Art Nouveau confection insisted that nothing less than a boat should project from its facade.

A whopping 14,000 copper coins cover this miniature fighter jet.

Stocking up on the world's best beer requires a pilgrimage to a monastery drive-through.

“It's the quality” (but probably also the drive-through donut tunnel) that has attracted diners since 1968.

A diminutive memorial marks the site of a successful assassination by a right-wing death squad in America's capital.

The only National Monument ever to go missing for nearly 50 years then resurface in a dump.

The walls of the iconic dome are hollow and have a secret stairway.

The towering figures were created from the cemetery's fallen old-growth trees.