This bookstore serves recipes from the cookbooks on sale.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Abstract dinosaur models in London.

The remains of Crystal Palace Great Exhibition of 1851.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

Jimi Hendrix's legendary recording studio in Greenwich Village.

The most confusing clock in New York.

“Invented in Key West, Perfected in Brooklyn."

Unique antiquarian shop specializing in globes, maps, and prints.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

One of only two commuter aerial tramways in the United States.

The "Seinfeld" diner.

New York's oldest magic store.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A crumbling hospital from the 1850s on Roosevelt Island.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

The largest 19th century panorama in the world still in-situ.

Europe's first floating restaurant is home to a hilarious legend.