Inside this Krakow church, an explosion of psychedelic color.

The oldest stone house in Paris was built by its most famous alchemist.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A museum has some wedding cake dating to the Teddy Roosevelt administration, and some bacon from FDR's.

Even for Egyptian royalty, the afterlife was bring-your-own-beef.

Aged nearly 1,700 years, the world's oldest bottle of wine is probably still drinkable.

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

Baked in 1898 and still almost flawless, this floral masterpiece is considered the world's oldest complete wedding cake.

Eyam took steps to quarantine themselves and keep the plague from spreading.

This precariously perched fortress was once ruled by a crow-worshipping baron.

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

Some believe that this ancient mural depicts technology far ahead of its time, but in reality it's nothing quite out of place.

On Japan's Tashirojima Island, cats are king.

This amazing 15th-century mural remained hidden in plain sight for centuries.

The development of this cliffside waterpark is representative of Mexico's history of co-op tourism developments.

A tunnel with windows, so you don't miss out on the impressive views.

This wooden chair dates possibly back to the 15th century, and commemorates a local legend.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

An otherworldly restaurant perched on the edge of a jagged cliff next to a medieval holy city.

This residential door allows San Francisco muggles a glimpse at the wizarding world.

An 18th-century estate owner thought these cottages were an eyesore, so he artfully disguised them as a church.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

Apartment complexes built into huge repurposed natural gas tanks.