Stonehenge
Stonehenge
Nelson\'s Column, Trafalgar Square (London)
Garden in Stratford-upon-Avon
St. John\'s College, Cambridge University
Olbrich Botanical Gardens (Wisconsin)
Answering a tough question (MOP 2004)
After a MOP 2004 lecture
Olbrich Botanical Gardens (Wisconsin)
The Paris Opera
View from Montmartre, Paris, France
University of Glasgow
Erfurt, Germany - Site of the first IMO attended by the USA
Thuringen Forest, somewhere between Eisenach, Germany and Wartburg Castle
Just married! (June 10, 2004)
State Street, University of Wisconsin - Madison
2002 TopCoder Collegiate Championship; Semifinal Room 3
Blarney Castle, Ireland
Blarney, Ireland
Blarney Castle, Ireland
Mirabell Gardens, Salzburg, Austria
Mozart fragrance (Salzburg, Austria)
Drawbridge, Carcassonne, France
Outer city wall, Carcassonne, France
Between the outer and inner walls, Carcassonne, France
(French) restaurant in Carcassonne, France
Outer city wall, Carcassonne, France
Piazza San Marco, Venice, Italy
Piazza San Marco, Venice, Italy
Piazza San Marco, Venice, Italy
On a Venetian water taxi
Venice, Italy
Piazza San Marco, Venice, Italy
Grand Canal, Venice, Italy
Venice, Italy
Mediterranean Sea, Alghero, Sardinia (Italy)
Pizza, Sardinian style (Alghero, Sardinia)
Mediterranean Sea, Alghero, Sardinia (Italy)
Mediterranean Sea, Alghero, Sardinia (Italy)
Mediterranean Sea, Alghero, Sardinia (Italy)
Bus stop at Maristella, Sardinia (Italy)
Cambridge, United Kingdom
Roof of Cambridge mathematics department (United Kingdom)
Gateway to Cambridge mathematics department (United Kingdom)
Mathematicians\' dinner, Churchill College (Cambridge, UK)
The Colosseum (Rome, Italy)
Roman ruins
Roman ruins
Roman ruins
The Colosseum (Rome, Italy)
The Colosseum (Rome, Italy)
The Spanish Steps (Rome, Italy)
St. Peter\'s Square (Vatican City)
Cambridge, United Kingdom
Danube river, Budapest, Hungary
Telephone booth near Buda Castle (Budapest, Hungary)
Copenhagen, Denmark
Copenhagen, Denmark
6th Avenue at night (Manhattan)
Times Square