A Jenga-style cylindrical tower of books that appears to go on forever.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

A calico cat named Tama was the wildly popular Super Station Master at this train stop in southeast Japan.

After a profound show of devotion for his master, a dog becomes the symbol of loyalty for an entire nation.

The 10,000 Torii shrine.

Devoted Buddhists can earn enlightenment in the next life by crawling through this symbolic nostril.

1,001 carved statues of the Buddhist God of Mercy, each with a unique face.

This 700-year-old street food market features baby octopus and soy donuts.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

There aren't too many operational funiculars around, but Pittsburgh has two!

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

Electronic inventions that resulted in products and systems we use every day are on display in this labor-of-love museum.

The home of pigs, snakes, chameleons, and the alleged largest bunny in the United States.

Crawl through the hole in the middle of this stone to break off a bad relationship or initiate a good one.

The famous artist couple lived and worked here, in two different houses separated by a bridge.

Part bookstore, part café, and part forest.

Frida Kahlo's childhood home, now a museum of her life and works.

The only castle in North America to ever house European sovereigns.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

An airy Art Deco space devoted to the weird and wonderful folk art traditions of Mexico.