Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

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.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A little sculpture with a large wardrobe.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

This huge pile of volcanic boulders hides a stunning network of secret grottoes.

Liechtenstein's royal family calls this medieval alpine castle home.

Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

A serious museum dedicated to two German comedians.

This splendid tomb may look fantastic, but there's nothing in it...

This grand Spanish-Cuban restaurant has been serving customers for more than a century.

The bridge's highly-contested plaque (once again) honors Confederate President Jefferson Davis.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

One of Hollywood's most iconic actresses was born in an upscale Brussels neighborhood in 1929.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

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

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

The tomb was guarded by soldiers from both sides of the war, and some left their initials carved in the brick.

Provincetown's night owls flock to this 52-year-old pizza joint.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

Outside the Department of Transportation, a collection of artifacts honors the history of how we get around.

The only tennis court that falls under the jurisdiction of the central bank.

This robust fence in front of a historic Georgetown home is likely made from hundreds of recycled Revolutionary War firearms.

This small hilltop church weaves the urban history of Washington, D.C. with the national history of the United States.