An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

The ancient tomb acts as a calendar that keeps perfect time.

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

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

This museum houses an imposing skeleton army comprised of creatures great and small.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

An industrial relic is now one of Europe's most staggering art spaces.

This massive steel pyramid can be entered by a set of jagged steps that let visitors stand in its heart.

The Bauhaus-style former industrial complex is considered the world's most beautiful coal mine.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

Beach instrument turned bed and breakfast.

A small collection of iguana-infested ruins hides amid Cancún's bustling hotel zone.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

A school-themed restaurant where gastronomy is the core curriculum.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

The second oldest continuously operating bar in Louisiana.

What remains of the summer palace of King Kamehameha III.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.