An interactive museum dedicated to preserving and sharing the history of the home computer.

The world's first floating farm is staffed by one human, three robots, and 35 cows.

The former headquarters of history's oldest megacorporation.

A grassy pyramid named after a French battle.

This beautifully designed star-shaped fort was the premier defense system of the late 1500s.

This pirate-broadcasting-tower-turned-restaurant played a rebellious role in the history of Dutch television.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

Colorful and chaotic stacked hotel in North Holland.

Peek through a transparent pyramid and drink in the mountain made of books.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

The attic of a four-century-old canal house hides a clandestine church.

The history and future of cannabis.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

The world's only museum devoted to the wonders of fluorescence.

Built in 1906, this unique building was the first Hindu temple in the United States.

San Francisco’s condensed garden of incredible plant growth.

A quiet nook at the top of a little-known hilltop park named after California's first poet laureate.

The first AIDS memorial chapel in San Francisco and one of only a few in the U.S.

A famous alternative culture epicenter and where Joplin serenaded young hippies.

San Francisco's most expensive hotel suite includes a secret passageway rumored to have been used by JFK.

The grand, column-fronted, sculpture-adorned home of the ambitious digital library.

A promotional sun clock on the site of San Francisco's great raceway.

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.