A treasure trove of astronomical, mathematical, and scientific instruments at Cambridge University.

An extraordinary library and archive dedicated to the history of the Arctic and Antarctic poles.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

Named after a lodging site that existed nearby, a bridge has existed at this location since 1455.

One of several Lilliputian portals that are ready to transport passengers to other dimensions, if they can find them.

An unusual artwork dedicated to a unique man that entertained people visiting Cambridge while raising money for charity.

Cambridge’s century-old outdoor swimming pool is tied for being the longest pool in the United Kingdom, but it is also unusually narrow.

An ordinary lamppost situated in the middle of Cambridge has an unusual moniker and history.

A gigantic statue of a Russian soldier watches over the ancient city of Plovdiv, a prominent reminder of the Soviet period in Bulgaria.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

Sofia's legislative center is continuously reinventing itself.

"Holy Wisdom" overlooks the city that became its namesake.

A striking symbol of the Bulgarian capital.

This chimerical bridge/tunnel appears to dead end right into the sea.

Swedish skyscraper with a 90° twist.

This quarry filled with 65 million-year-old limestone is now home to a nature reserve.

This bronze marker acknowledges an embarrassing royal blunder.

This millstone commemorates a gruesome tale that may have been the source of the city's name.

These waste baskets play a few risque messages to discourage littering.

This poignant sculpture of a gnarled weapon is a symbol of non-violence.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.