Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

The caldera of this mini-volcano has been turned into a naturally heated mud bath.

From Japan to Italy, this California park explores the world's cultures through their gardens.

Somewhere between an art studio and a print shop, this artists storefront is a house of worship devoted to type.

Go inside the house that inspired L. M. Montgomery to create one of literature's most beloved heroines.

A sudden, striking cluster of hills south of Padua has been attracting visitors for centuries.

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

This otherworldly palace-mausoleum complex is the stuff eternal dreams are made of.

Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.

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

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

The largest earthwork effigy in the world.

An ancient artistic garden parlor full of hidden water wonders.

This shrine to the patron saint of Alaska sits on a small tidal island and was built from the land’s own beach stones.

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

This abandoned island off the Venetian coast has been a radical monastery, a political prison, and a secret Nazi base.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.

These ancient ritual mounds are our best window into the culture of the ancient Mississippians.

This lovely burial mound is actually a replica that was installed after archeologists excavated the original.

A collection of huge Pre-Colombian structures in Alabama.

Brain collection and database that narrows the gap between man and animal.

An extraordinary collection of scientific instruments - and Einstein's chalkboard - inside the world's oldest purpose built museum building.

France's national museum of scientific and industrial instruments.