Friday Funny: The Citywide Crossword Puzzle

A giant crossword puzzle has been painted on the side of a 100-foot tall building in Lvov, Ukraine. Clues to the puzzle are planted throughout the city, and the puzzle's answers are revealed at nighttime with the use of special lights.

1 minute read

January 9, 2009, 2:00 PM PST

By Nate Berg


"There is one interesting detail about the design of the puzzle. It looks like an empty puzzle during the day-light, but at night when special lights are on the words in the puzzle become visible with a lightly-glowing fluorescent color."

"The questions for this crossword puzzle are located in different point of interests of the city, like monuments, theaters, fountains etc. So people while walking around the city can try to answer the questions and writing down the answers. When the night comes to the city they can meet at this house and check their degree of intelligence."

Tuesday, January 6, 2009 in English Russia

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

October 14, 2026 - Zachary Whalen

Cars driving under automatic congestion pricing toll machines on Broadway next to the Trump International Hotel in Manhattan, New York City.

Data reveals that NYC’s bet on congestion pricing has paid off

After almost two years of the program, reports show positive impacts on traffic and air quality and no disruptions to parking.

October 13, 2026 - Marcelo Remond

A crane lifts a manufactured house, with is rectangular and does not yet have a roof.

HUD modernizes 50-year-old manufactured housing framework

The Next Generation Manufactured Housing Action Plan establishes new energy-efficiency standards for manufactured homes, and new guidelines for anchoring them.

October 8, 2026 - Boston Real Estate Times

A large brown house in Massachusetts.

Small single-family homes are illegal in most of MA. Voters can change that

Most land zoned for single-family housing in Massachusetts requires at least 40,000 square feet of land per house.

October 16 - NPR

A group of people gather around Metra's battery-powered bus.

Public steps inside U.S.’s first battery-powered train

Metra’s groundbreaking train feature modern seats and a futuristic battery car.

October 16 - Chicago Sun Times

Tobias Bauer, Managing Director of Siemens Mobility North America in front of the company's Sound Transit new light rail vehicles.

Companies show off AI technology, new innovation hubs at APTA Expo

Nearly 700 companies attended the American Public Transportation Association’s Expo last week, which happens once every three years.

October 16 - Smart Cities Dive