A lone bicycler rides across the Longfellow Bridge to Boston from Cambridge while the area is under lockdown. The manhunt continues for a suspect in the terrorist bombing of the 117th Boston Marathon earlier this week. Dzhokhar and Tamerlan Tsarnaev, suspected of the Patriot’s Day bombing, apparently hail from Russia's war-torn Chechnya but had been in the U.S. for several years. Tamerlan reportedly died in a shootout with police on April 19. His younger brother fled and is being sought by police.

Photograph by Jonathan Wiggs/The Boston Globe via Getty Images

A lone bicycler rides across the Longfellow Bridge to Boston from Cambridge while the area is under lockdown. The manhunt continues for a suspect in the terrorist bombing of the 117th Boston Marathon earlier this week. Dzhokhar and Tamerlan Tsarnaev, suspected of the Patriot’s Day bombing, apparently hail from Russia's war-torn Chechnya but had been in the U.S. for several years. Tamerlan reportedly died in a shootout with police on April 19. His younger brother fled and is being sought by police.

Photograph by Jonathan Wiggs/The Boston Globe via Getty Images

This Is What Boston Looks Like Right Now

Quiet Streets
Quiet Streets

A lone bicycler rides across the Longfellow Bridge to Boston from Cambridge while the area is under lockdown. The manhunt continues for a suspect in the terrorist bombing of the 117th Boston Marathon earlier this week. Dzhokhar and Tamerlan Tsarnaev, suspected of the Patriot’s Day bombing, apparently hail from Russia's war-torn Chechnya but had been in the U.S. for several years. Tamerlan reportedly died in a shootout with police on April 19. His younger brother fled and is being sought by police.

Photograph by Jonathan Wiggs/The Boston Globe via Getty Images
Quiet Boston
Quiet Boston

Empty Summer street, looking towards downtown at 9:30 a.m.

Photograph by John Tlumacki/The Boston Globe via Getty Images
North Station Empty
North Station Empty

The area around North Station was almost completely devoid of people at around 9:40 a.m. A shelter-in-place lockdown continues as the manhunt for the second suspect in the Boston Marathon bombing is under way.

Photograph by Jim Davis/The Boston Globe via Getty Images
No Time for the Park
No Time for the Park

The Public Garden at around 10:50 a.m., with lots of color, but no people as a lockdown-in-place is in effect in Boston

Photograph by Jim Davis/The Boston Globe via Getty Images
Congress Street
Congress Street

Congress Street at the intersection with Milk Street in the Financial District was deserted at around 11:45 a.m

Photograph by Jim Davis/The Boston Globe via Getty Images
Federal Street
Federal Street

Federal Street in the Financial District at around 3:20 p.m.

Photograph by Jim Davis/The Boston Globe via Getty Images
All Traffic Halted
All Traffic Halted

A police officer stops traffic from entering an area of eastern Kenmore Square as the city is shut down.

Photograph by Suzanne Kreiter/The Boston Globe via Getty Images
Under Lockdown
Under Lockdown

The Massachusetts Avenue bridge has only a few pedestrians crossing.

Photograph by Jonathan Wiggs/The Boston Globe via Getty Images
No Cab Rides
No Cab Rides

Idle cabs and nearly empty streets around Boston's North Station and the TD Garden are pictured at around 9:50 a.m.

Photograph by Jim Davis/The Boston Globe via Getty Images
Stay off the Roads
Stay off the Roads

Massachusetts State Police patrol closed Mount Auburn Street as a manhunt is under way for a suspect in the terrorist bombing of the 117th Boston Marathon earlier this week.

Photograph by Bill Greene/The Boston Globe via Getty Images)
Watertown Deserted
Watertown Deserted

Watertown Square is deserted at approximately 6 a.m.

Photograph by Bill Greene/The Boston Globe via Getty Images
Stay Inside
Stay Inside

Police monitor a locked-down street as a search for the second of two suspects wanted in the Boston Marathon bombing takes place in Watertown, Mass.

Photograph by Stan Honda/AFP via Getty Images