This grand old 80-foot sequoia towers above the buildings in the city’s retail center.

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

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

An important Mayan religious and trading center dating back to 200 BC.

A massive underwater sinkhole made famous by Jacques Cousteau.

A comprehensive collection of bonsai set in a beautiful campus.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

The highest point in Washington state is a volcano covered in glaciers.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

This medieval village/restaurant perpetually celebrates the year 1376.

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.

A bronze tribute to a legendary Californian, the self-proclaimed "Emperor of the United States."

The first fresco Diego Rivera painted in the United States can be found in the former San Francisco Stock Exchange.

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

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This castle was once considered as an option for the Royal Family's alternate residence, but you may know it better from the 'X-Men' movie.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

Pick up all of the cosmic knick-knacks under the sun or take a creative writing course, all offered in this novelty storefront.

This working class sculpture pounds his hammer all the livelong day.

In this subterranean brick arcade, a small shop continues the ancient practice of bookbinding.