Vaşinqtonda Cherry Blossoms

This time each year, thousands of cherry trees display white and pink flowers throughout Washington, most prominently around the Tidal Basin. (Photo: Andrew Bossi)

The Cherry blossoms' peak bloom period is early this year, due to warmer than average spring temperatures in Washington. (Photo: Victoria Pickering)

Cherry blossoms blooming near the Martin Luther King Jr. National Memorial in Washington, March 19, 2012. (AP)

People row boats under the canopy of the cherry blossoms at the Imperial Palace moat in Tokyo. Japan gave 3,020 cherry blossom trees as a gift to the United States in 1912 to celebrate the nations' then-growing friendship. (AP)

Một chuyên viên tháo gỡ bom mìn đi khỏi hiện trường sau khi chuẩn bị cho nổ có kiểm soát một vật nghi ngờ tại Watertown, Massachusetts, trong cuộc truy lùng nghi can vụ đánh bom Marathon Boston.

The thick canopy of blossoms in Washington. (Photo: Danny Mac)

Cherry Blossoms along the tidal basin, near the Jefferson Memorial, March 17, 2012. (by Ehpien, via Flickr)

Photographer Jacques Gude (R) lines up a cherry blossom branch in Washington, March 18, 2012. (Reuters)

The Washington Monument backdrops the blooming Cherry Blossoms in Washington, March 18, 2012. (Photo: Andrew Bossi)