A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

As can be expected from a centuries-old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

Time has been frozen at this station since the bombing in 1980—or so it was believed.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

A medieval weapon rumored to have been used by the brilliant poet himself.

In Florence's great Duomo, a 26 foot fresco honors a mercenary famous for attacking Florence.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

Haven for steampunks.

Elevated freight railway turned wildly successful urban park.

Obscure Freemasons still live in D.C.’s largest private residence.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

The Corinthian columns that towered over Abraham Lincoln’s inauguration stand proud.

This 2,000-year-old Doric bridge is still open to pedestrian traffic to this day.

The oldest housing complex in Riga is a mini timeline of architectural trends.

This ducal residence was once home to a future Russian empress and a French king in exile.

Over time, this castle grew to encompass the entire island.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

In this museum, visitors are invited to touch the art.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

This is the oldest Roman-made bridge in the city still existing in its original state.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.