Once the grandest synagogue in medieval Spain, it now stands as a memorial of the 15th-century Jewish exile.

An Art Nouveau building covered in animal gargoyles and grotesques.

The medieval prince founded the first library in Ukraine at Saint Sophia's Cathedral where he was interred.

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

This exquisite, alienesque piece of Soviet architecture is being threatened by modern shopping malls.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

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

In one of the world's smallest countries, a royal's personal winery is open to the public.

The southernmost outpost of the Russian Empire in colonial America.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

This subtle Berkeley paving stone actually marks off a lawless tube of air that extends into space.

Artifacts of whaling, with both its perils and adventure, are housed in this museum in a former candle factory.

This neighborhood grocery houses a treasure trove of Eastern European delights.

New York's southernmost subway station is whimsically wavy.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

There must be a pun in this haystack somewhere...

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

Elevated freight railway turned wildly successful urban park.

A celebration of capitalism in Midtown.

The home of the first American-born saint is one of the only curved buildings in New York.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.