One of the most scenic stretches of road in America winds between some of the country's oldest trees.

This massive redwood tree has a hole in the base big enough to drive through.

Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

A walk through the historic city center, under the streets of Seattle.

A massive volcanic plug is now a protected area that hosts a number of bird species.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

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.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

At 207 feet, one of the world's longest continuous escalators.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

3/4-scale model of the White House in Atlanta, Georgia.

A hidden three-foot-wide house separates these two regal churches.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

Elaborate tile work in this railway station tells the story of Portugal.

Ancient catacombs form the foundation for this Rococo orgy of a church.

The stunning interior of this Gothic church is covered in ornate gold details.

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.

Granting the right of way to ships over surface traffic since 1917.

This Puget Sound military post has a long, turbulent history as a gateway to the Pacific.

Monument to a forgotten NYC disaster that claimed the lives of 1,000.