The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

A much-maligned monument to teetotalism.

Yo, Adrian!

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

This historic hotel invented the chocolate brownie.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

Once America's tallest structure, now a Baltimore landmark.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Parking garage where Bob Woodward met Watergate source "Deep Throat."

Home to items never before seen by the public.

Tijuana's legendary jai alai or "basque ball" palace is now a massive music venue.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

This abstract sculpture is rumored to cast a hammer-and-sickle shadow once a year.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

This striking, two-toned confluence of rivers is visible from space.

This little Vancouver shack is a temple to all things Hendrix.

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

This free, take-a-book shop seems like a trick but isn't.