Hamburgers are intensely proud of their tunnel beneath the river.

The library's graceful rotunda is like a bibliophile's temple.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

The unbelievably opulent home built for an infamous newspaperman.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

The romance of early commercial flight still fills this Art Deco destination.

A surreal statue honoring Prague's favorite literary son.

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

This supermarket is suspended 25 feet above an interstate highway.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

A black and white solution to the Bolivian city's traffic problems.

This 19th century train workshop is a treasure trove of railroad history.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

A shrine built to combat the bad karma of a commercial venture.

This bridge made famous in a novel and on-screen wasn't actually built over the river Kwai.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

The place to be if you love vintage Swedish cars.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

The second oldest anatomical theater is housed in a museum of curiosities.

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

Home to items never before seen by the public.

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